Window replacement system
CA 1135565 A · Owner: Kawneer Company, Inc. · Inventors: Hubbard, S. Eugene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A new and improved method and apparatus for replacing old windows in an existing building with new windows and surrounding trim comprises the use of elongated, especially designed trim elements which are cut to length and assembled onto the replacement window frame to trim the periphery thereof. The replacement window frame with the peripheral trim elements bodily attached thereto is then mounted in the opening in the building wall structure to replace an old deteriorated window previously removed therefrom. The novel method of assembly and installation guarantees a good fit between the trim elements and the window frame, and permits the critical seal between 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 November 16, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 1999.
- 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.