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Expired Canadian patentCanada

Cam structure for sliding door

CA 1078258 A · Owner: Weathervane Window · Inventors: Olsen, Allen J.

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 sliding glass door-wall employs a fixed panel and an active panel supported between a pair of jambs. The position of the fixed panel relative to the jambs and the direction of opening of the active panel may be reversed to accommodate different structural situations. Cam members disposed at midpoints on the top and bottom rails of the active panel cooperate with inwardly projecting cams formed on vertically extending frame panels projecting upwardly and downwardly from the sill and head as the active panels move to a closed position to force the active panel laterally against weatherstripping formed on the frame and the interlock stile of the fixed panel. The cam formations on the …

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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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 1997.
  • 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—
GrantedMay 27, 1980
Term endedMay 27, 1997
Patent numberCA 1078258 A
Classification (IPC)E06B3/46 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMay 27, 1980Term endedMay 27, 1997

Sources & verification

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