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Expired Canadian patentCanada

Captive self-locking mechanism

CA 1306372 C · Owner: Nixon, Kim B. · Inventors: Mahaney, Bernard F. Jr.; Nixon, Kim B.; Nunemaker, Terry 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 device for retaining a bolt including a plate having a bore therethrough for receiving the bolt a retainer movably, mounted on the plate and movable between a first position in engagement with a selected number of facets on the bolt head and a second position out of engagement with the facets the retainer, having a surface portion for receiving a tool at times when the tool is placed on the bolt head for moving the retainer to the second position, and a biasing device for urging the retainer to the first position at times when the tool is removed from the bolt head.

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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 August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 23, 1989
GrantedAugust 18, 1992
Term endedAugust 18, 2009
Patent numberCA 1306372 C
Classification (IPC)F16B39/10 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedFeb 23, 1989Patent grantedAug 18, 1992Term endedAug 18, 2009

Sources & verification

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