Silane compositions
CA 2136137 C · Owner: Bishop, Craig V. · Inventors: Bishop, Craig V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Silane compositions are described which comprise (A) a silane coupling agent; and (B) a tris(silylorgano)amine or alkane characterized by the formulae, (RO)3SiR13N ~~(I), or, (RO)3SiR13CR2 ~(II) wherein each R is independently an alkyl alkoxyalkyl, aryl, aralkyl or , cycloalkyl group of less than 20 carbon atoms; R1 is a divalent hydrocarbon or polyether group, of less than 20 carbon atoms; and R2 is a functional group represented by C n H 2n X, wherein n is from 0 to 20 and X is selected from the group consisting of amino, amido, hydroxy, alkoxy, halo, mercapto carboxy, acyl, vinyl, allyl, styryl, epoxy isocyanato, glycidoxy, and acryloxy groups. The silane compositions of the present, …
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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 November 18, 1994 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2016.
- 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.