Transparent shatter-resistant silicone coating
CA 2034441 A1 · Owner: General Electric Company · Inventors: Maguire, Thomas F.; Medford, George F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PATENTS, Docket No. 60SI-1342, TRANSPARENT SHATTER-RESISTANT SILICONE COATING ABSTRACT OF THE DISCLOSURE, A transparent and fast curing composition suitable for use as a shatter-resistant coating on a glass porcelain, or, ceramic surface, wherein the composition comprises: (A). at least about 62 to about 71 parts by weight of a solid, benzene soluble resin copolymer consisting essentially of R3SiO1/2 units and SiO4/2 units (B). from about 29 to about 38 parts by weight of an essentially cyclic free, polydiorganosiloxane the, viscosity of the polydiorganosiloxane having a value of from about 500 to about 1,000,000 centipoises at 25°C, the total of (A) and (B) being 100 parts by weight;, (C). …
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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 January 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 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.