Asbestos-free insulant for rocket motors
CA 1263227 C · Owner: Couture, Guy J.E. · Inventors: Carignan, Pierre J.; Couture, Guy J.E.; Sanschagrin, Denis J. J-P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention disclosed is a thermal insulant for high-temperature applications such as in rocket motors. The novel insulant is asbestos-free and comprises a carboxyl-terminated polybutadiene-based binder, a thermally stable reinforcing fibre, material, preferably an aromatic polyamide fibre material and a, powdered siliceous filler material other than asbestos wherein, the fibre and filler materials are both compatible with the binder.
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 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 28, 2006.
- 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.