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Expired Canadian patentCanada

Door hinge assembly

CA 1310231 C · Owner: Haigh, Peter · Inventors: Haigh, Peter

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 door pivot assembly comprising two portions. One portion is attached to a support beam for the door and has a vertical cylindrical pivot bearing and horizontal bearing surface. A V-shaped groove is formed on the bearing surface defining the closure plane of the door. The second portion of the assembly is attached to the door and has a pin for engaging the cylindrical bearing of the first portion. A V-shaped rib is provided on the first portion extending normal to the pin and at an angle to the door closure plane. This rib engages the groove of the first portion when the door is closed and biases the door towards a closed position. - 1 -

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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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 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.
FiledJune 29, 1987
GrantedNovember 17, 1992
Term endedNovember 17, 2009
Patent numberCA 1310231 C
Classification (IPC)E05F1/04 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 29, 1987Patent grantedNov 17, 1992Term endedNov 17, 2009

Sources & verification

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