Ink-jet recording process using liquid formulation and ink in combination
CA 2212352 C · Owner: Takahashi, Katsuhiko · Inventors: Kurabayashi, Yutaka; Ogasawara, Masashi; Ono, Eriko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is an ink-jet recording process for forming a color image on a recording medium using a liquid formulation and a color ink in combination wherein said, liquid formulation contains a cationic polymer having a weight-average molecular weight in the range of from 400 to 1,400, and said liquid formulation and said ink are each ejected from a recording head having an ink ejection volume per dot of from 2 to 25 picolitters.
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 August 1, 1997 and granted April 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 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.
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.