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Expired Canadian patentCanada

Hinge

CA 1107015 A · Owner: Antonacci, Carmen S. · Inventors: Antonacci, Carmen S.

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

The disclosure relates to a hinge for articles of furniture such as kitchen cabinets, closets and the like. The hinge includes two base elements and first and second pairs of links pivotally coupled to one another and to the base elements. The hinge is biased towards its closed position by a C-shaped spring which is stressed to a progressively increasing extent as the hinge opens.

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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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
  • 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 20, 1978
GrantedAugust 18, 1981
Term endedAugust 18, 1998
Patent numberCA 1107015 A
Classification (IPC)E05D3/06 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJuly 20, 1978Patent grantedAug 18, 1981Term endedAug 18, 1998

Sources & verification

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