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Expired Canadian patentCanada

Wedging assembly for sealing an edge of a window shade

CA 1290679 C · Owner: Kentish, Joan · Inventors: Charest, Gerald

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 profile assembly is disclosed for the wedgesealing of a sheet of flexible material such as the shade of a window. It is made up of a female and of a male extruded plastic profile, The female profile is U-shaped and defines an open housing; one of its legs has at its, free end, a resilient sealing lip turned into the housing while the other leg has, also at its free end a first, wedging lip. The male profile is L-shaped and has a wedging branch and a base branch; the two making between them an inner angle of less than 30°. Furthermore the, base branch includes, at the end away from the wedging branch, an upright arm having a second wedging lip on its face that looks toward the first …

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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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.
FiledDecember 22, 1987
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290679 C
Classification (IPC)E06B9/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 22, 1987Patent grantedOct 15, 1991Term endedOct 15, 2008

Sources & verification

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