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Expired Canadian patentCanada

Sliding panel roller assembly

CA 1302167 C · Owner: Celotex Corporation (The) · Inventors: Marshik, Gary 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

This invention relates to closures which comprise horizontally sliding, closing panels such as patio screen doors which move on grooved rollers on a guide track. More particularly this invention relates to a novel, roller assembly for such doors and the improved doors themselves. The roller assembly of this invention comprises a grooved wheel attached to a perforated metal tape or spring which is movable over a sloping track by means of a toothed gear wheel or sprocket.

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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 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.
FiledAugust 11, 1988
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302167 C
Classification (IPC)E05D15/06

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 11, 1988Patent grantedJune 2, 1992Term endedJune 2, 2009

Sources & verification

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