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Expired Canadian patentCanada

Screw cap opener

CA 1074596 A · Owner: Kap-Key · Inventors: Hogan, Violet L.; Hogan, Jesse M.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A screw cap opener for jars and the like having screw caps or lids thereon consisting of a plastic holder preferably made of PVC-type material in various colors. Two nickel plated metal blades are mounted in the plastic support holder at an angle to each other to form a V-shaped gripping structure. One of the blades has a smooth edge while the second blade edge has sawteeth formed therein. Because of the V-shaped arrangement of the blades jar lids of various sizes in the normal range encountered in everyday use may be readily accommodated.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedApril 1, 1980
Term endedApril 1, 1997
Patent numberCA 1074596 A
Classification (IPC)B67B7/18

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedApril 1, 1980Term endedApril 1, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.