Fenestration product with unitary frame members and method of manufacture
CA 2220628 C · Owner: Minter, Mearl J. · Inventors: Minter, Mearl J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract 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.
Read the whole patent
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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.