Expired Canadian patentCanada
Composition comprising aromatic carbonate polymer, butadiene-styrene copolymer and acrylate- methacrylate copolymer
CA 1188024 A · Owner: General Electric Company · Inventors: Liu, Ping Y.
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel composition which comprises, (a) an aromatic carbonate polymer (b) a butadiene-styrene copolymer, and an (c) acrylate copolymer which is a copolymer of a C1-C5 acrylate and a C1-C5 methacrylate.
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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 May 28, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1982
GrantedMay 28, 1985
Term endedMay 28, 2002
Patent numberCA 1188024 A
Classification (IPC)C08L9/06 +1 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.