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Expired Canadian patentCanada

Bracket and door track assembly

CA 1136488 A · Owner: Clark Door Company, Inc. · Inventors: Hermanson, Lars

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This bracket and track assembly can be used for sliding door assemblies and facilitates the alignment and installation of such doors. The track includes a pair of spaced inwardly facing channel-shaped track members supported by a, plurality of longitudinally spaced U-shaped bracket members, embracingly disposed about said track members. The upper portion of each bracket member includes a rotatably mounted locking clip and a pair of arcuate slots receiving opposed legs of the clip. The arcuate slots overlap the upper inner, edges of each track member so that the clip legs exert an outward force against the track members when the clip is rotated tending to urge said track members into …

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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 November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 23, 1980
GrantedNovember 30, 1982
Term endedNovember 30, 1999
Patent numberCA 1136488 A
Classification (IPC)E05D15/06

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedApril 23, 1980Patent grantedNov 30, 1982Term endedNov 30, 1999

Sources & verification

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