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Expired Canadian patentCanada

Windstrap for pliable roll-type overhead door

CA 1284093 C · Owner: Rosenow, Anthony · Inventors: Rosenow, Anthony

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 windstrap secured to a lightweight pliable, roll-type overhead door across the width thereof reinforces the door structure maintaining it in position across a doorway when the door is in the lowered extended position, and isolating the two areas on respective sides of the door when there is a pressure differential therebetween such as due to wind.

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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 14, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 21, 1987
GrantedMay 14, 1991
Term endedMay 14, 2008
Patent numberCA 1284093 C
Classification (IPC)A47G5/02

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 21, 1987Patent grantedMay 14, 1991Term endedMay 14, 2008

Sources & verification

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