Heat curable blends of silicone polyimide and epoxy resin
CA 2087756 A1 · Owner: General Electric Company · Inventors: Lupinski, John H.; Gorczyca, Thomas B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RD-21,189, HEAT CURABLE BLENDS OF SILICONE POLYIMIDE AND EPOXY RESIN, Abstract of the Disclosure Heat curable dielectric compositions are provided comprising blends of silicone polyimide and epoxy resin and an effective amount of an arylonium salt such as a diaryliodoniumhexafluoroantimonate in combination with a free radical generating aromatic compound as a cocatalyst.
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 January 21, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2015.
- 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.