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
2155237 GROUND CLOSER KIT FOR ATTACHMENT TO A SEEDING/FERTILIZING APPARATUS, AND A SEEDING/FERTILIZING APPARATUS HAVING A GROUND CLOSER PLATE SCHOENHOFER, BETTY ANNE (Canada) 2015-08-02
2155249 HYDRAULIC MINERAL SEPARATOR PIONEER LICENSING, INC. (United States of America) 2015-08-02
2155254 VIRTUAL SPACE DISPLAY METHOD AND VIRTUAL SPACE SHARING APPARATUS USING THE SAME NIPPON TELEGRAPH & TELEPHONE CORPORATION (Japan) 2015-08-02
2155261 LUBRICANT COMPOSITION FOR AMMONIA REFRIGERANTS USED IN COMPRESSION REFRIGERATION SYSTEMS THE LUBRIZOL CORPORATION (United States of America) 2015-08-02
2155264 CONTAINER WITH SHOULDER FLANGE AND REMOVABLE SIDEWALL PORTIONS, AND RELATED METHOD ROPAK CORPORATION (United States of America) 2015-08-02
2155267 PRE-COMPENSATED FREQUENCY MODULATION (PFM) HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF COMMUNICATIONS (Canada) 2015-08-02
2155272 PRIMARY DIVIDER PLATE THE BABCOCK & WILCOX COMPANY (United States of America) 2015-08-02
2155291 FLASHLIGHT WITH FLEXIBLE CORE BLACK & DECKER INC. (United States of America) 2015-08-02
2155293 SLEEVE RETENTION FOR FLEXIBLE CORE OF A FLASHLIGHT BLACK & DECKER INC. (United States of America) 2015-08-02
2196304 CONTROLLED LOCAL DELIVERY OF CHEMOTHERAPEUTIC AGENTS FOR TREATING SOLID TUMORS MASSACHUSETTS INSTITUTE OF TECHNOLOGY (United States of America) THE JOHNS HOPKINS UNIVERSITY (United States of America) 2015-08-02
2196606 TAMPER EVIDENT SEAL AND TAPE AMPAC SECURITY PRODUCTS, LTD. (United Kingdom) 2015-08-02
2196656 METHOD FOR THE PREPARATION OF (±)-CALANOLIDE A AND INTERMEDIATES THEREOF SARAWAK MEDICHEM PHARMACEUTICALS INCORPORATED (United States of America) 2015-08-02
2197760 ADJUSTABLE AUTOMOBILE PEDAL SYSTEM KSR IP HOLDINGS LLC (United States of America) 2015-08-02
2198907 BIMODAL LIQUID CHROMATOGRAPHY PUMP EMPLOYING ARTIFICIAL INTELLIGENCE LOGIC FEEDBACK CONTROL DIONEX CORPORATION (United States of America) 2015-08-02
2200698 ABRASIVE ARTICLE AND METHOD FOR THE PRODUCTION THEREOF FERRONATO, SANDRO GIOVANNI GIUSEPPE (Netherlands) 2015-08-02
2227535 CRACK RESISTANT VALVE PLATE ASSEMBLY FOR A MOLTEN METAL SLIDE GATE VALVE VESUVIUS CRUCIBLE COMPANY (United States of America) 2015-08-02
2461583 TAMPER EVIDENT TAPE AND LABEL AMPAC SECURITY PRODUCTS, LTD. (United Kingdom) 2015-08-02
2155276 A METHOD OF MAKING A TOOTH MOLD DENTSPLY INTERNATIONAL INC. (United States of America) 2015-08-03
2155373 COMPACT MOTOR CONTROLLER ASSEMBLY GENERAL ELECTRIC COMPANY (United States of America) 2015-08-03
2155390 SEAT AND OCCUPANT RESTRAINT SYSTEM INDIANA MILLS & MANUFACTURING, INC. (United States of America) 2015-08-03
2155405 INTERLOCK MECHANISM FOR A MOTOR CONTROL UNIT SQUARE D COMPANY (United States of America) 2015-08-03
2155406 CONNECTOR ASSEMBLY FOR A MOTOR CONTROL UNIT SQUARE D COMPANY (United States of America) 2015-08-03
2211374 DISCOLORATION PREVENTION IN PYRITHIONE-CONTAINING COATING COMPOSITIONS ARCH CHEMICALS, INC. (United States of America) 2015-08-03
2228489 LOW LEAD RELEASE PLUMBING COMPONENTS MADE OF COPPER BASED ALLOYS CONTAINING LEAD, AND A METHOD FOR OBTAINING THE SAME EUROPA METALLI S.P.A. (Italy) 2015-08-03
1339980 SECOND GENERATION MONOCLONAL ANTIBODIES HAVING BINDING SPECIFICITY TO TAG-72 AND HUMAN CARCINOMAS AND METHODS FOR EMPLOYING THE SAME THE UNITED STATES OF AMERICA, REPRESENTED BY THE SECRETARY, U.S. DEPARTMENT OF COMMERCE (United States of America) 2015-08-04
2155450 A LOGGING GRAPPLE DEERE & COMPANY (United States of America) 2015-08-04
2155476 SELF-CONTAINED POWERED SURGICAL APPARATUS FOR APPLYING SURGICAL FASTENERS UNITED STATES SURGICAL CORPORATION (United States of America) 2015-08-04
2155477 APPARATUS FOR APPLYING SURGICAL FASTENERS UNITED STATES SURGICAL CORPORATION (United States of America) 2015-08-04
2155478 IMPROVED STEAM GENERATING APPARATUS AND METHOD OF CONTROLLING THE SAME ALTMAN, MITCHELL (United States of America) 2015-08-04
2155485 PULVERIZER HOSOKAWA MICRON CORPORATION (Japan) 2015-08-04
2155493 CARBAPENEM DERIVATIVES CONTAINING A BICYCLIC KETONE SUBSTITUENT AND THEIR USE AS ANTI-INFECTIVES ASTRAZENECA UK LIMITED (United Kingdom) 2015-08-04
2155502 METHOD OF IMAGE GENERATION BY MEANS OF TWO-DIMENSIONAL DATA PROCESSING IN CONNECTION WITH A RADAR WITH SYNTHETIC APERTURE DEUTSCHE FORSCHUNGSANSTALT FUR LUFT- UND RAUMFAHRT E.V. (Germany) 2015-08-04
2155503 A METHOD FOR DETECTING DEFECTS IN PROTEIN C/PROTEIN S MEDIATED BLOOD CLOTTING SIEMENS HEALTHCARE DIAGNOSTICS PRODUCTS GMBH (Germany) 2015-08-04
2155505 INK JET PRINTING METHOD AND APPARATUS CANON KABUSHIKI KAISHA (Japan) 2015-08-04
2171004 FOAMED DRILLING FLUIDS, THEIR PROCESS FOR PREPARATION AND THE CORRESPONDING DRILLING METHOD SCHLUMBERGER CANADA LIMITED (Canada) 2015-08-04
2195677 ENDOTHELIN ANTAGONISTS ABBVIE BAHAMAS LTD. (Bahamas) 2015-08-04
2196271 QUINOLONE- OR NAPHTHYRIDONECARBOXYLIC ACID DERIVATIVE OR SALT THEREOF TOYAMA CHEMICAL CO., LTD. (Japan) 2015-08-04
2196555 VR-2332 VIRAL NUCLEOTIDE SEQUENCE AND METHODS OF USE REGENTS OF THE UNIVERSITY OF MINNESOTA (United States of America) 2015-08-04
2196766 SIMULTANEOUS EVOLUTION OF A MULTI-PART PROGRAM KOZA, JOHN R. (United States of America) KOZA, JOHN R. (United States of America) 2015-08-04
2197313 SPINAL SUPPORT SYSTEM FOR SEATING TIMM, EDWARD E. (United States of America) WALKER, BROCK M. (United States of America) 2015-08-04
2352899 IMPROVED STEAM GENERATING APPARATUS AND METHOD OF CONTROLLING THE SAME ALTMAN, MITCHELL (United States of America) 2015-08-04
2574986 SELF-CONTAINED POWERED SURGICAL APPARATUS FOR APPLYING SURGICAL FASTENERS UNITED STATES SURGICAL CORPORATION (United States of America) 2015-08-04
2173609 DEVICE FOR INSERTING A FLEXIBLE INTRAOCULAR LENS BAUSCH & LOMB INCORPORATED (United States of America) 2015-08-07
2196922 PHARMACEUTICALLY STABLE OXALIPLATINUM PREPARATION DEBIOPHARM S.A. (Switzerland) 2015-08-07
2197188 DENTURE ADHESIVE BLOCK DRUG COMPANY (United States of America) 2015-08-07
2197189 DENTURE ADHESIVE COMPOSITION BLOCK DRUG COMPANY, INC. (United States of America) 2015-08-07
2198699 SYSTEM AND METHOD FOR RECORDING AND PLAYING BACK MULTIMEDIA EVENTS TTI INVENTIONS C LLC (United States of America) 2015-08-07
2228763 BREWING PRODUCTS AND THEIR METHODS FOR PRODUCTION MILLER BREWING INTERNATIONAL, INC. (United States of America) 2015-08-07
2155594 BIODEGRADABLE FOAMED PLASTIC MATERIALS NOVAMONT S.P.A. (Italy) 2015-08-08
2155595 FLUORPOLYMER SHEETS FORMED FROM HYDROENTANGLED FIBERS AUSIMONT U.S.A., INC. (United States of America) 2015-08-08
2155600 MANUALLY OPERATED FASTENING DEVICE POWERSHOT TOOL COMPANY INC. (United States of America) 2015-08-08
2155613 CARRIER STOCK HAVING FINGER-GRIPPING STRAPS CURVED INWARDLY TOWARD EACH OTHER ILLINOIS TOOL WORKS INC. (United States of America) 2015-08-08
2155614 MECHANISM FOR ENDOSCOPIC SUTURING DEVICE UNITED STATES SURGICAL CORPORATION (United States of America) 2015-08-08
2155618 METHOD FOR REGULATING THE FURNACE IN INCINERATION PLANTS, IN PARTICULAR IN REFUSE INCINERATION PLANTS MARTIN GMBH FUR UMWELT-UND ENERGIETECHNIK (Germany) 2015-08-08
2155622 TUBE CLEANER FOR HARD DEPOSITS CONCO SYSTEMS, INC. (United States of America) 2015-08-08
2155625 VULCANIZED POLYOLEFINIC PLASTOELASTOMER COMPOSITION AND A PROCESS FOR ITS PREPARATION ENICHEM ELASTOMERI S.R.L. (Italy) 2015-08-08
2172291 PRESSURIZED BALL BEARING ASSEMBLIES PRATT & WHITNEY CANADA INC. (Canada) 2015-08-08
2172292 BLEED VALVE PRATT & WHITNEY CANADA INC. (Canada) 2015-08-08
2172361 MEDIAL COLLATERAL LIGAMENT BRACE GENERATION II ORTHOTICS INC. (Canada) 2015-08-08
2173153 PERFUMING DEVICE FOR PERFUMING AND SANITIZING AMBIENT AIR RECKITT BENCKISER (UK) LIMITED (United Kingdom) 2015-08-08
2196903 METHOD AND APPARATUS FOR EFFICIENT HANDOFFS BY MOBILE COMMUNICATION ENTITIES CIRRUS LOGIC, INC. (United States of America) 2015-08-08
2197763 APPARATUS FOR AND METHOD OF FORMING UNIFORM THIN COATINGS ON LARGE SUBSTRATES SULZER METCO AG (Switzerland) 2015-08-08
2198083 AVERAGE AIR TEMPERATURE SENSOR TRANE INTERNATIONAL INC. (United States of America) 2015-08-08
2201896 FABRIC SOFTENING COMPOSITION CONTAINING CHLORINE SCAVENGERS THE PROCTER & GAMBLE COMPANY (United States of America) 2015-08-08
2506783 MANUALLY OPERATED FASTENING DEVICE POWERSHOT TOOL COMPANY INC. (United States of America) 2015-08-08
2506785 MANUALLY OPERATED FASTENING DEVICE POWERSHOT TOOL COMPANY INC. (United States of America) 2015-08-08

List auto-generated on August 1, 2015

Canadian Intellectual Property