Canadian application, no grantCanada
Extruded foam product
CA 2391664 A1 · Owner: Owens Corning Intellectual Capital, Llc · Inventors: Weekley, Mitchell Z.; Breindel, Raymond M.; Miller, Larry M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is drawn to an extruded polymer foam product with a substantially rounder cell size. The rounder cell size is achieved through the use of both titanium dioxide and talc.
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 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 2000
GrantedNo grant recorded
Term endedNovember 14, 2020
Patent numberCA 2391664 A1
Classification (IPC)C08J9/00 +2 more
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.