Method for obtaining thick, adherent diamond coatings using metal interface screens
CA 2076086 A1 · Owner: General Electric Company · Inventors: Kehl, Randall J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Broadly, the present invention is addressed to a method for coating a substrate with a layer of chemical vapor deposition (CVD) diamond. The inventive method comprises attaching a screen to the area of the substrate to be coated and coating said screened area with a layer of CVD diamond. Preferably the screen is attached only at its edges by spot welding or arc welding the screen to the area of the surface where the diamond coating is desired. The screen serves two functions: it creates a more favorable surface for diamond deposition; and it provides a semi-flexible surface that aids to relax stresses that occur in the diamond film both during growth and during …
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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 August 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.