Nickel carbonyl vapour deposition apparatus and process
CA 2307036 C · Owner: Chemical Vapour Deposition Systems Inc. · Inventors: Milinkovic, Miroslav; Terekhov, Dmitri S.; Reynolds, Rodney P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closed loop, carbon monoxide self-contained preferably continuous process and apparatus for the production of nickel or nickel coated objects by nickel vapour deposition (NVD), comprising placing an object (34) to be treated with nickel carbonyl in a deposition chamber (28); feeding a gaseous mixture of nickel carbonyl and carbon monoxide to the chamber; producing the nickel or nickel coated object and a nickel carbonyl-depleted gaseous mixture; removing nickel carbonyl from the nickel carbonyl-depleted gaseous mixture in a primary (40) and subsequent secondary (48, 50) condensation unit and preferably, a , tertiary condensation unit to produce an essentially nickel carbonyl-free …
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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 3, 1998 and granted May 27, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2020.
- 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.