Photocatalyst composite and process for producing the same
CA 2126418 C · Owner: Murakami, Hajime · Inventors: Watanabe, Mitsuru; Murakami, Hajime; Fukui, Yasuro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A photocatalyst composite is provided which comprise a substrate having particles of a photocatalyst such as titanium oxide adhered thereon via a less degradative adhesive such as a fluorinated polymer comprising a copolymer of a vinyl ester and/or vinyl ether and a fluoroolefin or a silicon based polymer or cement. Furthermore a process for producing the photocatalyst composite and a coating composition containing the photocatalyst composite are provided.
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 June 21, 1994 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 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.