Laminate film having a thermocurable resin layer
CA 2056594 A1 · Owner: Fujii, Ryuichi · Inventors: Kawashima, Masao; Ogitani, Osamu; Fujii, Ryuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A laminate film is disclosed which includes a substrate film and a photocurable resin film formed of a photocurable epoxy resin, a photopolymerization catalyst and a phenoxy or butyral resin and supported on one surface of the substrate film. The laminate film is useful for forming an electrically insulating layer over a conducting surface by transference of the photocurable resin film to the conducting surface.
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 November 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 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.