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Expired Canadian patentCanada

Hinge with spring coupling member

CA 2041971 C · Owner: Toffrel, Andreas · Inventors: Brustle, Klaus; Rock, Erich; Toffrel, Andreas

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 hinge includes a hinge arm mounted on a base plate by an intermediate member having a U-shaped cross-section. The hinge arm is retained on the intermediate member by depth and joint adjustment devices, e.g. clamping and adjusting screws. Retaining elements of the intermediate member engage corresponding retaining elements of the base plate at two points staggered over the length of the base plate. The retaining elements are rigid at one such point and at the other point one retaining element is resilient. The hinge arm and the intermediate member engage the base plate with the rigid retaining elements and snaps in at, only the base plate due to the resilient retaining element which is in …

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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

  • Filed May 7, 1991 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1991
GrantedMarch 20, 2001
Term endedMay 7, 2011
Patent numberCA 2041971 C
Classification (IPC)E05D7/04 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 7, 1991Patent grantedMarch 20, 2001Term endedMay 7, 2011

Sources & verification

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