Expired Canadian patentCanada
Water-dissipatable polyester resins and coatings prepared therefrom
CA 1333645 C · Owner: Eastman Kodak Company · Inventors: Blount, William Williamson
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a water-dissipatable polyester containing a sulfonate group and at least 10 mole percent of a multifunctional or branch-inducing moiety. The polyester is useful to prepare coatings such as paints.
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 December 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 1989
GrantedDecember 20, 1994
Term endedDecember 20, 2011
Patent numberCA 1333645 C
Classification (IPC)C08G63/68 +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.