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Expired Canadian patentCanada

Fenestration product with unitary frame members and method of manufacture

CA 2220628 C · Owner: Minter, Mearl J. · Inventors: Minter, Mearl 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

A fenestration apparatus such as a door or window includes a unitary frame having first and second walls defining a cavity that opens toward the inboard wall of the frame. The first wall includes ridges defining a trough for receiving a bead of sealant. The second wall includes a shelf and a ramp between the shelf and the cavity opening. During assembly, the edge of the pane engages the ramp and follows the contour thereof toward a seated position on the shelf and toward a seated position against the ridges and sealant bead. This avoids the squeezing out of any sealant onto exposed portions of the pane.

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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

  • Filed November 3, 1997 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 3, 1997
GrantedApril 30, 2002
Term endedNovember 3, 2017
Patent numberCA 2220628 C
Classification (IPC)E06B3/22 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 3, 1997Patent grantedApril 30, 2002Term endedNov 3, 2017

Sources & verification

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