Door sill and threshold assembly
CA 1287522 C · Owner: Therma-Tru Corp. · Inventors: Thorn, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved one piece injection molded sill unit is disclosed for use in a door frame having a jamb assembly on each of a pair of parallel sides. The unit has raised locator stops projecting from each end of the top of the sill unit adjacent a threshold portion. The stops abut rabbets on the jamb assemblies to allow simple and easy alignment of the unit with the jamb assemblies. The unit also has end walls and spaced apart ribs on its hollow underside.
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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.