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Expired Canadian patentCanada

Wheel rim wrench

CA 1249934 A · Owner: Pratt, Russell W. · Inventors: Pratt, Russell W.

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 tool (130) for use in rotating a nut threadedly received on a mediately disposed threaded portion of an elongate connector having a contoured outside end and the tool simultaneously holding the connector stationary. The nut in conjunction with the connector are adapted to facilitate the retention of the outside wheel rim of a dual rim self-aligning wheel rim to a brake drum. The tool comprises a motion means for providing rotational motion when in a selected condition. A wrench means (140) for engaging the nut so that nut may be rotated. A drive means (218,178,256,274,288) for connecting the motion means to the wrench means (140) so that the wrench means (140) rotates the nut when engaged …

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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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1985
GrantedFebruary 14, 1989
Term endedFebruary 14, 2006
Patent numberCA 1249934 A
Classification (IPC)B25B17/00 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJuly 29, 1985Patent grantedFeb 14, 1989Term endedFeb 14, 2006

Sources & verification

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