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Expired Canadian patentCanada

Cam adjustment device

CA 1303910 C · Owner: La See, Jack C. · Inventors: La See, Jack 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 casement window sash unit includes a pair of track and hinge assemblies, each being secured to one of the upper and lower horizontal window frame members of a window opening in a building. Each track and hinge assembly includes a track having a toggle hinge pivotally and slidably secured thereto and to the sash. The track for each assembly has a pair of elongate longitudinally extending openings therein, each accommodating an attachment screw therethrough, each opening being of a size to permit slight longitudinal shifting of the track relative to the window frame. Each track and hinge assembly includes a cam positioned within a cam opening in the track and secured to the track …

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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 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 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.
FiledOctober 18, 1988
GrantedJune 23, 1992
Term endedJune 23, 2009
Patent numberCA 1303910 C
Classification (IPC)E05D15/30

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 18, 1988Patent grantedJune 23, 1992Term endedJune 23, 2009

Sources & verification

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