Expiring Patents

Every day patents are expiring. Under the current Patent Act, patents last a maximum of 20 years from the date of filing. There are also ‘Old Act’ patents which expiry at the later of 20 years from the date of filing or 17 years from the date of issue.

The first ‘New Act’ patents expired on October 2, 2009. ‘Old Act’ patents are still expiring based on the issued date.

Most patent applications do not become patents, and many patents do not survive to the end of their terms. Every day, patents are becoming dead for failure to pay maintenance fees or other deficiencies.

This list is automatically generated. Do not rely on any of the information on this website and webpage and confirm all information independently.

Patents Expiring This Week

Patent Number Title Owner Expiry Date
2141127 CORROSION PROTECTION SYSTEM CORROSION SERVICE COMPANY LIMITED (Canada) 2015-01-26
2141128 METHOD AND APPARATUS FOR SENSING AN INPUT CURRENT WITH A BRIDGE CIRCUIT GENERAL ELECTRIC COMPANY (United States of America) 2015-01-26
2141152 BLOOD WITHDRAWAL DEVICE SARSTEDT, WALTER (Germany) 2015-01-26
2141167 ESOPHAGEAL-TRACHEAL DOUBLE LUMEN AIRWAY TYCO HEALTHCARE GROUP LP (Canada) 2015-01-26
2141170 METHOD OF FORMING AN OPTICAL FIBRE PREFORM PRYSMIAN CABLES & SYSTEMS LIMITED (United Kingdom) 2015-01-26
2141172 POWER TRANSMISSION BELT MITSUBOSHI BELTING LTD. (Japan) 2015-01-26
2141174 IMPROVEMENTS IN OR RELATING TO CO-CHANNEL INTERFERENCE SUPPRESSION SYSTEMS NOKIA SIEMENS NETWORKS GMBH & CO. KG (Germany) 2015-01-26
2141175 A PROCESS FOR THE PRODUCTION OF TETRAZOLYL COMPOUNDS TAKEDA PHARMACEUTICAL COMPANY LIMITED (Japan) 2015-01-26
2141180 METHOD FOR MAKING SMOOTH UNCREPED THROUGHDRIED SHEETS KIMBERLY-CLARK WORLDWIDE, INC. (United States of America) 2015-01-26
2179620 ADAPTATIVE FEEDFORWARD AND FEEDBACK CONTROL SYSTEM NOISE CANCELLATION TECHNOLOGIES, INC. (United States of America) 2015-01-26
2181890 PRODUCTION OF POLYASPARTIC ACID FROM MALEIC ACID AND AMMONIA DONLAR CORPORATION (United States of America) 2015-01-26
2182086 USE OF MOMETASONE FUROATE FOR TREATING AIRWAY PASSAGE AND LUNG DISEASES MERCK SHARP & DOHME CORP. (United States of America) 2015-01-26
2182104 GASTROSTOMY TUBE WITH IMPROVED INTERNAL RETAINING MEMBER ABBOTT LABORATORIES (United States of America) 2015-01-26
2182266 POSITIVE LOCKING CANNULA TYCO HEALTHCARE GROUP LP (United States of America) 2015-01-26
2182985 METHOD OF PRINTING A MULTIPLE COLOR IMAGE USING HEAT SENSITIVE INKS AND APPLYING A POLYMER SURFACE PREPARATION MATERIAL TO A SUBSTRATE SAWGRASS TECHNOLOGIES, INC. (United States of America) 2015-01-26
2183345 FABRIC LAMINATES W. L. GORE & ASSOCIATES, INC. (United States of America) 2015-01-26
2211325 EXTENDED RELEASE CLONIDINE FORMULATION CONCORDIA PHARMACEUTICALS INC. (Barbados) 2015-01-26
1339640 FLOW-IMPROVED FUEL OIL COMPOSITION SUMITOMO CHEMICAL COMPANY, LIMITED (Japan) 2015-01-27
1339641 SYNERGISTIC FUEL COMPOSITIONS CHEVRON RESEARCH AND TECHNOLOGY COMPANY (United States of America) 2015-01-27
2141226 APPARATUS AND METHOD FOR FEEDBACK ADJUSTING MACHINE WORKING CONDITION FOR IMPROVING DIMENSIONAL ACCURACY OF PROCESSED WORKPIECES TOYOTA JIDOSHA KABUSHIKI KAISHA (Japan) TEMCO CORPORATION (Japan) 2015-01-27
2141227 BRUSH CUTTER WORK HEAD WITH PIVOTABLE SHROUD MILBOURN, DAVID E. (United States of America) 2015-01-27
2141240 EXTRUDED CATALYST BASED ON SILICA/ALUMINA GEL ENIRICERCHE S.P.A. (Italy) AGIP PETROLI S.P.A. (Italy) ENICHEM SYNTHESIS S.P.A. (Italy) 2015-01-27
2141245 METHOD AND APPARATUS FOR MANUFACTURING A LIQUID CONTAINER HAVING PLURAL POROUS MEMBERS CANON KABUSHIKI KAISHA (Japan) 2015-01-27
2141247 PROCESS FOR THE PREPARATION OF DIACEREIN LABORATOIRE MEDIDOM S.A. (Switzerland) 2015-01-27
2141263 ELECTROMAGNETIC AND RADIO FREQUENCY INTERFERENCE SUPPRESSION FOR GROUND FAULT CIRCUIT INTERRUPTERS SIEMENS INDUSTRY, INC. (United States of America) 2015-01-27
2141264 DEVICE FOR THE SWIVELING MOVEMENT OF A SHEET, IN PARTICULAR IN REFRIGERATION COUNTERS OR MERCHANDISE COUNTERS GERD UND BERND VIELER KG (Germany) 2015-01-27
2141266 BEARING ARRANGEMENT FOR A TURRET IN A VESSEL STATOIL PETROLEUM AS (Norway) 2015-01-27
2141272 SIGNAL RECEPTION SYSTEM COMPRISING AN ADAPTIVE FILTER NEC CORPORATION (Japan) 2015-01-27
2141286 TRUCK MOUNTED TANK HAVING LOW CENTER OF GRAVITY GOLDEC HAMM’S MANUFACTURING LTD. (Canada) 2015-01-27
2141287 MOTOR DESIGNED FOR MANUFACTURING AND METHOD OF ASSEMBLY EMERSON ELECTRIC CO. (United States of America) 2015-01-27
2154760 A METHOD FOR AUTOMATICALLY DISPLAYING MAP SYMBOLS RAYTHEON COMPANY (United States of America) 2015-01-27
2157661 METHOD AND SYSTEM FOR DEMODULATION OF DOWNLINK CDMA SIGNALS ERICSSON INC. (United States of America) 2015-01-27
2181433 MATERIALS AND METHODS FOR MANAGEMENT OF HYPERACUTE REJECTION IN HUMAN XENOTRANSPLANTATION ST. VINCENT’S HOSPITAL (MELBOURNE) LIMITED (Australia) 2015-01-27
2181598 PACKAGED STRAIN ACTUATOR ACTIVE CONTROL EXPERTS, INC. (United States of America) 2015-01-27
2181808 LASER IPG PHOTONICS CORPORATION (United States of America) 2015-01-27
2182176 THERMAL-INSULATION/THERMAL COLLECTOR ASSEMBLY ASCHAUER, JOHANN (Austria) 2015-01-27
2182415 MEDICAL DRESSING SMITH & NEPHEW PLC (United Kingdom) 2015-01-27
2183235 ACTIVE INTEGRATED CIRCUIT TRANSPONDER AND SENSOR APPARATUS FOR TRANSMITTING VEHICLE TIRE PARAMETER DATA ENGENIUS, INC. (United States of America) 2015-01-27
2141346 DOCK LEVELER IN WHICH THE RAMP IS RAISED AND LOWERED USING AN INFLATABLE MEMBER 4FRONT ENGINEERED SOLUTIONS, INC. (United States of America) 2015-01-30
2141354 METHOD OF ROUTING MULTIPLE VIRTUAL CIRCUITS AMERICAN TELEPHONE AND TELEGRAPH COMPANY (United States of America) 2015-01-30
2141356 FUME HOOD WITH AIR FOIL MEMBER FISHER HAMILTON SCIENTIFIC INC. (United States of America) 2015-01-30
2141357 LIGHTWEIGHT DOUBLE WALL STORAGE TANK GRAINAWI, LORRI J. (United States of America) REESE, R. ALLAN (United States of America) 2015-01-30
2141369 TEA BREWER VKI TECHNOLOGIES, INC. (Canada) 2015-01-30
2141378 FLUORINE-CONTAINING LEAD- AND CADMIUM-FREE GLAZES CORNING INCORPORATED (United States of America) 2015-01-30
2181266 METHODS FOR THE ELIMINATION OF DNA SEQUENCING ARTIFACTS THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (United States of America) 2015-01-30
2181910 PROCESS FOR MAKING AVERMECTIN/ZEIN COMPOSITIONS MERCK SHARP & DOHME CORP. (United States of America) 2015-01-30
2182097 SEED VIGOR BY PRE-HARVEST DEFOLIATION OF MAIZE PLANTS PIONEER HI-BRED INTERNATIONAL, INC. (United States of America) 2015-01-30
2182273 L-NUCLEOSIDES FOR THE TREATMENT OF HEPATITIS B-VIRUS AND EPSTEIN-BAR VIRUS YALE UNIVERSITY (United States of America) UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC. (United States of America) 2015-01-30
2182289 IMMUNO-STIMULATORY MONOCLONAL ANTIBODIES MOR RESEARCH APPLICATIONS LTD. (Israel) 2015-01-30
2182511 MICROBIOLOGICAL CULTURE BOTTLE, AND METHOD OF MAKING AND USING SAME TREK DIAGNOSTIC SYSTEMS, INC. (United States of America) 2015-01-30
2182516 PROBES LABELLED WITH ENERGY TRANSFER COUPLED DYES THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (United States of America) 2015-01-30
2182628 APPARATUS FOR CARRYING OUT PERITONEAL DIALYSES FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH (Germany) 2015-01-30
2182704 DRILLING BIT ASSEMBLY AND APPARATUS DB STRATABIT S.A. (Belgium) 2015-01-30
2263657 POROUS MONOLITHIC INSULATING MATERIAL FOR USE IN A DOUBLE WALL STORAGE TANK GRAINAWI, LORRI J. (United States of America) REESE, R. ALLAN (United States of America) 2015-01-30
2141465 MEDICAMENT INHALER AND METHOD HOVIONE INTER LTD. (Switzerland) 2015-01-31
2141476 METHOD AND EQUIPMENT FOR THE MANUFACTURE OF A NEEDLE-RIB HEAT-EXCHANGER CONSTRUCTION RETERMIA OY (Finland) 2015-01-31
2141480 SELECTIVE SCREENING OF INCOMING CALLS FOR CELLULAR TELEPHONE SYSTEMS AMERICAN TELEPHONE AND TELEGRAPH COMPANY (United States of America) 2015-01-31
2141482 ECCENTRIC WEATHER SHELTER MCMAHON, FRANCIS ARTHUR (Canada) 2015-01-31
2141498 CONTAINER SYSTEM FOR PRODUCTS, METHOD FOR PRODUCING A CONTAINER OF BANANAS, AND METHOD OF VENTILATING AND STORING PRODUCT CHIQUITA BRANDS, INC. (United States of America) 2015-01-31
2141500 POLYCHLOROPRENE AND POLYMONOOLEFIN RUBBER ADHESIVE COMPOSITION BRIDGESTONE/FIRESTONE, INC. (United States of America) 2015-01-31
2141502 TIMING BELT TENSIONER AND METHOD OF MAKING SAME LITENS AUTOMOTIVE PARTNERSHIP (Canada) 2015-01-31
2141504 CHEWING-GUM COMPOSITION OF IMPROVED ORGANOLEPTIC QUALITY AND PROCESS ENABLING SUCH A CHEWING-GUM TO BE PREPARED ROQUETTE FRERES (France) 2015-01-31
2141510 TUBING STRING HANGING APPARATUS ROBBINS & MYERS CANADA, LTD. (Canada) 2015-01-31
2141519 PAPER CONTAINING ALKALINE SIZING AGENTS WITH IMPROVED CONVERSION CAPABILITY HERCULES INCORPORATED (United States of America) 2015-01-31
2141532 DUAL DRAINAGE SLOPE RECUPERATIVE HEAT EXCHANGER ASSEMBLY FOR FUEL-FIRED CONDENSING FURNACES RHEEM MANUFACTURING COMPANY (United States of America) 2015-01-31
2179816 POWER TONG WRENCH CANRIG DRILLING TECHNOLOGY LTD. (United States of America) 2015-01-31
2182272 MODIFIED PAPILLOMA VIRUS L2 PROTEIN AND VLPS FORMED THEREFROM UNIVERSITY OF QUEENSLAND (THE) (Australia) CSL LIMITED (Australia) 2015-01-31
2182315 EXPRESSION OF HETEROLOGOUS PROTEINS IN ATTENUATED BACTERIA USING THE HTRA-PROMOTERS PEPTIDE THERAPEUTICS LIMITED (United Kingdom) 2015-01-31
2182475 PRINTING BLANKET HOLDING BAR FASTENING METHOD REEVES BROTHERS INC. (United States of America) 2015-01-31
2182586 MULTIPLE MODE PERSONAL WIRELESS COMMUNICATIONS SYSTEM GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-01-31
2182588 WINGED BILIARY STENT KALLOO, ANTHONY N. (United States of America) PASRICHA, PANKAJ J. (United States of America) 2015-01-31
2182598 CELLULAR RADIOTELEPHONE SYSTEM WITH REMOTELY PROGRAMMED MOBILE STATIONS GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-01-31
2183338 ELECTROMAGNETIC ACOUSTIC TRANSDUCER FOR BOLT TENSION AND LOAD MEASUREMENT THE BABCOCK & WILCOX COMPANY (United States of America) 2015-01-31
2183731 NOVEL INDOLE DERIVATIVES USEFUL TO TREAT ESTROGEN-RELATED NEOPLASMS AND DISORDERS AVENTISUB II INC. (United States of America) 2015-01-31
2192471 ENDOSCOPIC LIGATING INSTRUMENT DABEGRAN TECHNOLOGIES, INC. (United States of America) 2015-01-31
2386741 METHOD OF OPERATING A CELLULAR RADIO TELECOMMUNICATION NETWORK GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-01-31
2386746 METHOD OF OPERATING A RADIOCOMMUNICATIONS SYSTEM GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-01-31
2386753 REMOTELY PROGRAMMED TELECOMMUNICATIONS RF LINK MODULE AND METHOD THEREFOR GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-01-31
2512905 ENDOSCOPIC LIGATING INSTRUMENT DABEGRAN TECHNOLOGIES, INC. (United States of America) 2015-01-31
2571691 REMOTELY PROGRAMMED TELECOMMUNICATIONS RF LINK MODULE AND METHOD THEREFOR GTE WIRELESS INCORPORATED (United States of America) 2015-01-31
2141624 LIFT TRUCK DIAGNOSTICS RAYMOND CORPORATION (United States of America) 2015-02-01
2141626 INTERLOCK CONTROL SYSTEM FOR POWER MACHINE CLARK EQUIPMENT COMPANY (United States of America) 2015-02-01
2141629 HALL EFFECT SENSOR ASSEMBLY CLARK EQUIPMENT COMPANY (United States of America) 2015-02-01
2141630 TRACTION LOCK CLARK EQUIPMENT COMPANY (United States of America) 2015-02-01
2141646 LEATHER COLORING PROCESS, LEATHER COLORING APPARATUS, AND COLORED LEATHER PRODUCED BY SUCH PROCESS CANON KABUSHIKI KAISHA (Japan) 2015-02-01
2141649 METHOD FOR MANUFACTURING AN ABSORBENT FIBRE LAYER, AND AN ABSORBENT FIBRE LAYER BKI HOLDING CORPORATION (United States of America) 2015-02-01
2141656 SHOE CONSTRUCTION WITH INTERNAL CUSHIONING RIBS WOLVERINE WORLD WIDE, INC (United States of America) 2015-02-01
2141660 PRETREATMENT PROCESS FOR A NATURAL GAS CONTAINING HYDROGEN SULFIDE INSTITUT FRANCAIS DU PETROLE (France) 2015-02-01
2159331 COATING COMPOSITION AND SURFACE-COATED MOLDING PRODUCED THEREWITH MITSUBISHI RAYON CO., LTD. (Japan) 2015-02-01
2159353 MICROCAPSULES WITH WALLS MADE OF CROSS-LINKED PLANT POLYPHENOLS, AND COMPOSITIONS CONTAINING SAME CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France) 2015-02-01
2174772 INDICIA DEVICE FOR TURNSTILE AND METHOD OF USE ENTRY MEDIA, INC. (United States of America) 2015-02-01
2179388 BACK-FLOW PREVENTING BAG VALVE FOR BAG-IN-BOX CONTAINER COCA-COLA COMPANY (THE) (United States of America) 2015-02-01
2181459 ELECTRONIC TOLL PAYMENT MONDEX INTERNATIONAL LIMITED (United Kingdom) 2015-02-01
2181939 METHOD FOR PURIFYING AN ORGANIC WASTE-CONTAINING MEDIUM RHODIA CHIMIE (France) 2015-02-01
2181993 METHOD OF MAKING A MICROMECHANICAL SILICON-ON-GLASS TUNING FORK GYROSCOPE THE CHARLES STARK DRAPER LABORATORY, INC. (United States of America) 2015-02-01
2182293 A VESSEL FOR PRODUCTION AND/OR LOADING/UNLOADING AND TRANSPORT OF HYDROCARBONS FROM OFFSHORE FIELDS, AND/OR FOR CARRYING OUT WELL OPERATIONS STATOIL PETROLEUM AS (Norway) 2015-02-01
2182384 OPTICAL TIME DOMAIN REFLECTOMETRY IPG PHOTONICS CORPORATION (United States of America) 2015-02-01
2182390 PROCESS FOR PRODUCING BACTERICIDAL/FUNGICIDAL PLASTIC BODIES KRALL, THEODOR (Austria) GUGGENBICHLER, PETER J. (Germany) 2015-02-01
2182585 PESTICIDAL MICRONUTRIENT COMPOSITIONS CONTAINING ZINC OXIDE GB BIOSCIENCES CORPORATION (United States of America) 2015-02-01
2182589 PROCESS FOR TRANSMITTING DATA IN PACKETS IN A MOBILE RADIO SYSTEM TIP COMMUNICATIONS LLC (United States of America) 2015-02-01
2182600 CELLULAR RADIOTELEPHONE WITH DIALED NUMBER ANALYSIS GTE WIRELESS SERVICE CORPORATION (United States of America) 2015-02-01
2183355 METHOD OF CONVERTING A SERIES OF M-BIT INFORMATION WORDS TO A MODULATED SIGNAL, METHOD OF PRODUCING A RECORD CARRIER, CODING DEVICE, DECODING DEVICE, RECORDING DEVICE, READING DEVICE, SIGNAL, AS WELL AS A RECORD CARRIER KONINKLIJKE PHILIPS ELECTRONICS N.V. (Netherlands) 2015-02-01
2183954 TREATMENT OF OBSESSIVE-COMPULSIVE DISORDERS WITH 5-HT2 ANTAGONISTS AVENTISUB II INC. (United States of America) 2015-02-01
2456968 METHOD OF CONVERTING A SERIES OF M-BIT INFORMATION WORDS TO A MODULATED SIGNAL, METHOD OF PRODUCING A RECORD CARRIER, CODING DEVICE, DECODING DEVICE, RECORDING DEVICE, READING DEVICE, SIGNAL, AS WELL AS A RECORD CARRIER PHILIPS ELECTRONICS N.V. (Netherlands) 2015-02-01

List auto-generated on January 25, 2015