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Expired Canadian patentCanada

Rotary tool for driving english and metric threaded members

CA 1090629 A · Owner: Surelab Superior Research Laboratories, Inc. · Inventors: Marschke, Jon V.

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 rotary tool having an opening with a first set of peripheral notches providing bearing surfaces for engaging English size driving portions of threaded members and a second set of peripheral notches providing bearing surfaces for engaging metric size driving portions of threaded members.

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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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 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.
FiledMay 29, 1978
GrantedDecember 2, 1980
Term endedDecember 2, 1997
Patent numberCA 1090629 A
Classification (IPC)B25B13/06

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 29, 1978Patent grantedDec 2, 1980Term endedDec 2, 1997

Sources & verification

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