Recording liquid and ink-jet recording method making use thereof
CA 2006131 C · Owner: Suga, Yuko · Inventors: Noguchi, Hiromichi; Suga, Yuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recording liquid comprises a pigment a, water-soluble resin, a water-soluble origanic solvent and water, wherein; of the water-soluble resin water-, soluble resin dissolved is present in an amount of not more than 25 by weight; and the water-soluble organic solvent comprises at least one of a polyhydric alcohol and an alkyl ether thereof, and an aliphatic monohydric alcohol.
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 20, 1989 and granted June 18, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by 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.
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.