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Expired Canadian patentCanada

Chair structure and tilt mechanism therefor

CA 1056291 A · Owner: Westinghouse Electric Corporation · Inventors: Albinson, Don C.

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

An improved chair structure and tilt mechanism for office chairs and the like wherein the chair back is mounted to the tilt mechanism through the chair arms causing the chair arms to thus move forward and backward in conjunction with like movement of the chair back independently of any movement or tilt of the chair seat.

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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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 12, 1979
Term endedJune 12, 1996
Patent numberCA 1056291 A
Classification (IPC)A47C3/18 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJune 12, 1979Term endedJune 12, 1996

Sources & verification

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