Expired Canadian patentCanada
Recording medium, ink-jet recording method using the same, and dispersion of alumina hydrate
CA 2122099 C · Owner: Canon Kabushiki Kaisha · Inventors: Miura, Kyo; Kondo, Yuji; Yoshino, Hitoshi
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a recording medium comprising an alumina hydrate having an average pore radius of 20 to 200 .ANG. and a half breadth of pore radius distribution of 20 to 150 .ANG..
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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 April 25, 1994 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 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.
FiledApril 25, 1994
GrantedAugust 17, 1999
Term endedApril 25, 2014
Patent numberCA 2122099 C
Classification (IPC)C09D1/00 +2 more
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.