Article having a predetermined surface configuration and production process therefor
CA 2407378 A1 · Owner: Nippon Sheet Glass Co. Ltd. · Inventors: Yamamoto, Hiroaki; Nakamura, Koichiro; Matsuda, Atsunori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preparing an article having a predetermined shape wherein a solgel material is disposed in a film form between a substrate and a mold being closely contacted with both of them and then is heated to thereby prepare an , article having the substrate and covering the surface thereof, a gelled film having a surface of a shape obtained by reversing the surface shape of the mold, characterized in that the sol-gel material comprises a metal compound represented by M1Xm, a hydrolyzed product thereof or a hydrolyzed and polycondensed product thereof and a metal compound represented by R1M2Yn a , hydrolyzed product thereof or a hydrolyzed and polycondensed product thereof wherein at …
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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 February 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2024.
- 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.