Transparent substrate and method of manufacturing the same
CA 2058341 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Mino, Norihisa; Ogawa, Kazufumi; Soga, Mamoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
At least one monomolecule film is formed on a transparent substrate surface directly or via a protective film. The monomolecule film is formed with chemical coupling of chlorosilane surface active compound for, example) of the formula:, F (C F2 ) m (C H2 ) n S i R q X3-q where m is an integer of from 1 to 15, n is an integer of from 0 to 15 provided that the total of m and n is an integer of from 10 to 30 and R is an alkyl or an alkoxyl group, or, F (C F2 ) m' (CH2 ) n' A (C H2 ) p S i R q X 3-q where m' represents an integer ranging from 1 to 8 n', represents an integer ranging from 0 to 2 p represents an, integer ranging from 5 to 25 q represents an integer, ranging from 0 to 2 X …
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 23, 1991 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2013.
- 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.