Recording paper, ink-jet recording process and recording system making use of the recording paper
CA 2270148 C · Owner: Hirose, Mifune · Inventors: Sakaki, Mamoru; Katayama, Masato; Hirose, Mifune
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recording paper comprising pulp fibers and a filler has a surface where pulp fibers bared to the surface and pulp fibers covered with particles are present together in portions. The quantity of ink transfer at a minimum ink-shoot time interval for adjacent dots with different colors as measured by the Bristow's test method is not smaller than a maximum shot-in ink quantity per unit area of recording system used.
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 March 6, 1995 and granted June 11, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2017.
- 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.