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Expired Canadian patentCanada

Device in combinative yoke means

CA 1292968 C · Owner: Karlsson, Gosta · Inventors: Karlsson, Gosta

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

A container and trailer-handling combination yoke having lifting arms mounted at the opposite ends of two transversely extending, longitudinally spaced yokes interconnected by a telescopically extensible frame are, mounted for pivoting between respective generally vertical, operating positions and generally horizontal elevated positions. The arms are mounted to the respective yoke ends via respective intermediate members which are themselves pivotally mounted to the yokes about respective generally horizontal, longitudinally extending axes, so that the elevated arms may be swung inboard to storage positions lying transversely inboard of the respective ends of the yokes. Preferably …

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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 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 1987
GrantedDecember 10, 1991
Term endedDecember 10, 2008
Patent numberCA 1292968 C
Classification (IPC)B66F9/18 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 28, 1987Patent grantedDec 10, 1991Term endedDec 10, 2008

Sources & verification

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