Ink acceptor material
CA 2178841 A1 · Owner: Johnson, Edward J. · Inventors: Lambert, Ronald F.; Johnson, Edward J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acceptor material (10) for printing by ink-jet printers forms quick-drying water-soluble resistant, light-stable ink records with aqueous ink jet inks. The material (10) comprises a support (12) such as polyester film and a coated layer (14) containing a water-soluble mordant that forms insoluble compounds with and immobilizes the dyes of the ink jet inks and a hardened water managing polymer preferably. hardened gelatin, which contains polymeric beads in an uppermost layer. The water-soluble mordants can high molecular quaternary ammonium, amino compounds, phospholipids or divalent Group II metal ions.
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 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2016.
- 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.