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Expired Canadian patentCanada

Foam filled door with unitized bottom rail and bottom sweep

CA 1091508 A · Owner: Peachtree Doors, Inc. · Inventors: Governale, Bernard C.

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

Abstract of the Disclosure, A foam-filled door with a unitized bottom rail and bottom sweep assembly in which the assembly comprises a continuous channel cross section rail of lesser width than the thickness of the door between the metal skins and a bottom sweep of elastic material molded directly onto the exterior surface of the metallic bottom rail, permanently bonded to it and having comparatively thick sweep ribs with side walls rising from the ribs. The side walls of the sweep and adjacent side wall portion of the bottom rail are inserted snugly between the metal skins of the door and embedded permanently in the foam core of the door. The metallic bottom rail may include upper angled …

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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 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 1980
GrantedDecember 16, 1980
Term endedDecember 16, 1997
Patent numberCA 1091508 A
Classification (IPC)E06B3/20

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Application filedJune 11, 1980Patent grantedDec 16, 1980Term endedDec 16, 1997

Sources & verification

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