Ink composition for jet printer
CA 2602811 C · Owner: Tanaka, Shigehiro · Inventors: Kaneko, Kazuhiro; Tanaka, Shigehiro; Shimamura, Yoshinosuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an ink composition for jet printer comprising a pigment, a film forming resin and an organic solvent, the film forming resin being an acrylic copolymer containing, as a monomer unit, at least one of compounds represented by the general formulas (1) and (2): (see formula 1) , wherein R1 represents a hydrogen atom or a methyl group; R2 represents an alkylene group having 2 to 12 carbon atoms which may be linear or branched; and R3 and R4 each independently represents a hydrogen atom an alkyl group, an , alkenyl group or an aryl group and the sum of the number of , carbon atoms of R3 and R4 is from 4 to 12 or R3 and R4 form , a saturated or unsaturated hydrocarbon group …
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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
- Filed March 30, 2006 and granted January 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.