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Expired Canadian patentCanada

Quick disconnect device

CA 1317616 C · Owner: General Motors Corporation · Inventors: Mccurdy, Frederick A.; Zuccaro, Dante C.

CIPO record

Overview

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

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Abstract From the Canadian patent

F-1,435 C-3923 PATENT, QUICK DISCONNECT DEVICE Abstract of the Disclosure, The present invention provides a quick disconnect coupling for a work tool to a machine. The invention in its preferred embodiment provides a coupling having fluid and electrical connections and also providing alignment independent of the locking mechanism. The present invention also is advantageous in that the locking mechanism is protected from the environment when the coupling halves are not mated and also prevents a false lock-up unless the halves of the coupling are mated and aligned.

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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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 21, 1988
GrantedMay 11, 1993
Term endedMay 11, 2010
Patent numberCA 1317616 C
Classification (IPC)F16L37/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 21, 1988Patent grantedMay 11, 1993Term endedMay 11, 2010

Sources & verification

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