Layered article with improved microcrack resistance and method of making
CA 2394338 A1 · Owner: Olson, Daniel Robert · Inventors: Gasworth, Steven Marc; Olson, Daniel Robert; Katsamberis, Dimitris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a multilayer article which includes a substrate (10) a first layer (20) comprising a partial condensate of a diorganodiorganooxysilane having the formula R2Si(OR')2 or an organotriorganooxysilane having the formula RSi(OR')3 or both, where R is , independently selected from the group consisting of alkyl groups containing about 1-3 carbon atoms, aromatic groups containing about 6-13 carbon atoms the vinyl radical, the 3, 3,3-trifluoropropyl radical the gamma-, glycidoxypropyl radical and the gamma-methacryloxypropyl radical and R' is , independently selected from the group consisting of alkyl groups containing about 1-8 carbon atoms, aromatic groups containing …
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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 15, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.