Canadian application, no grantCanada
Pigment compositions
CA 2224933 A1 · Owner: Blackburn, John Bryce · Inventors: Mcgregor, David; Blackburn, John Bryce; Kerwin, Paul
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 provides the use of a resinated pigment in which from 10 to 100% of the resinated proportion of the product is a resin ester as colourant, in a lithographic printing ink.
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 December 15, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2019.
- 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 15, 1997
GrantedNo grant recorded
Term endedDecember 15, 2017
Patent numberCA 2224933 A1
Classification (IPC)C09D11/08 +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.