Chemical vapor deposition method and coatings produced therefrom
CA 2393531 C · Owner: Tomov, Trifon · Inventors: Shanmugham, Subramaniam; Laye, Nii Sowa; Shoup, Shara S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A modified chemical vapor deposition (CVD) method and various coatings formed by this method are disclosed. A , uniform coating is obtained by the disclosed CVD method by redirecting the energy source and/or the hot gasses produced thereby. The methods disclosed are particularly useful for forming thin film insulative, oxide coatings on the surface of conductive or super-conductive wires. The redirect methods are also useful for producing powders that can be collected for further processing. Metal oxide barrier coatings for polymer food containers are also disclosed.
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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 December 21, 2000 and granted February 15, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.