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Expired Canadian patentCanada

Modular safety grille

CA 1198629 A · Owner: Lafleur, Remi · Inventors: Lafleur, Remi

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

Two tubular straight frame members of identical rectangular, cross-section are adapted to be secured to opposite parallel sides of a building aperture and a rigid rod is insertable at both ends into rod-receiving holes made in the inwardly-facing walls of said frame members to extend across the aperture. This inwardly-facing wall and, also the front wall of each frame member is provided with a pair of, screwdriver-receiving holes made on either side of the rod-receiving hole. The two remaining walls of each frame member are provided with screwreceiving holes in respective axial alignment with the screwdriverreceiving holes. Thus, the frame members can be selectively fastened to the …

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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 December 31, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 1984
GrantedDecember 31, 1985
Term endedDecember 31, 2002
Patent numberCA 1198629 A
Classification (IPC)E06B7/00 +1 more

Timeline

Timeline From CIPO dates

198519871989199119931995199719992001Application filedJan 24, 1984Patent grantedDec 31, 1985Term endedDec 31, 2002

Sources & verification

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