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Expired Canadian patentCanada

Sputtered titanium oxynitride films

CA 1333270 C · Owner: Gillery, Frank Howard · Inventors: Gillery, Frank Howard

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Abstract From the Canadian patent

A titanium oxynitride film, and a method for its production are disclosed. A method for making a titanium oxynitride coated article comprises a. placing a substrate in a coating chamber; b. evacuating said chamber; c. providing an atmosphere comprising oxygen and nitrogen in said chamber; d. placing a titanium cathode in said chamber facing a surface of said substrate; e. sputtering said titanium cathode in said atmosphere comprising oxygen and nitrogen in said chamber thereby depositing a titanium oxynitride coating on said surface of said substrate. Other aspects of the invention are also disclosed as for instance coated articles comprising titanium oxynitride in combination with other …

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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

  • Granted November 29, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 29, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 1988
GrantedNovember 29, 1994
Term endedNovember 29, 2011
Patent numberCA 1333270 C
Classification (IPC)C23C16/30 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 3, 1988Patent grantedNov 29, 1994Term endedNov 29, 2011

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.