Frame assembly for doors, windows and the like
CA 1315157 C · Owner: Thorn, John E. · Inventors: Thorn, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved frame assembly for doors windows and the like is provided. The, assembly includes a frame defining an opening for receiving and retaining a central panel. The frame is formed from two joined skins which may be molded in the same mold and which are provided with inwardly extending flanges having notched areas on opposite sides of the flanges such that the skins can be joined together to form a lap joint on the exterior edge and to seal a central panel in the opening. Foamable insulating material is provided as a core between the two skins with a separate sealant material provided to seal the central panel. Passage means are provided for introducing the sealant material and the …
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
- Granted March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2010.
- 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.