Expired Canadian patentCanada
Pigment-containing liquid coating composition
CA 1231792 A · Owner: Akzo N.V. · Inventors: Van Oosterwijck, Maurice F.; Nota, Gabriel H.A.; Toth, Anton
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 invention relates to a block copolymer built up of blocks of a car-boxylic terephthalic or isophthalic polyester resin and an epoxy resin and to a pigment-coating composition based on such a copolymer.
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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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1983
GrantedJanuary 19, 1988
Term endedJanuary 19, 2005
Patent numberCA 1231792 A
Classification (IPC)C08G81/00 +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.