Anti-adherent silicone/adhesive complex with stabilising additive in silicone
CA 2389015 A1 · Owner: White, John · Inventors: Guyot, Christophe; Frances, Jean-Marc; White, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an anti-adherent silicone/adhesive complex comprising at least a silicone coating applied on a first support and an adhesive coating applied on a second support. The invention is characterised in that the silicone coating which is derived from a polyorganosiloxane oligomer or polymer with functional epoxy and/or alkenylether and/or oxetane and/or dioxolane groups comprises an adhesive designed to stabilise in the course of time the release force of a silicone/adhesive interface.
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 October 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2022.
- 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.