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Expired Canadian patentCanada

Apparatus and process for coloring objects by plasma coating

CA 1264025 C · Owner: Babjak, Juraj · Inventors: Babjak, Juraj; Bradford, Raymond A.; Conard, Bruce R.

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Abstract From the Canadian patent

A technique for presenting and fixturing small items that are coated by vapor deposition techniques. The objects are caused to be moved within the plasma stream to effect full coverage. The coating if titanium nitride, is gold colored and is for, example, useful for coinage applications.

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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 December 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1987
GrantedDecember 27, 1989
Term endedDecember 27, 2006
Patent numberCA 1264025 C
Classification (IPC)C23C16/50 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMay 29, 1987Patent grantedDec 27, 1989Term endedDec 27, 2006

Sources & verification

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