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Expired Canadian patentCanada

Coated article and method of manufacturing the article

CA 1329567 C · Owner: Burkhardt, Robert · Inventors: Dean, Kevin; Burkhardt, Robert; Johncock, Annette

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Disclosed is a coated article having a substrate with an adherent, abrasion resistant alkene-silane plasma reaction product coating. In a preferred exemplification the coating is substantially transparent to visible light and partially absorbing to ultraviolet light. The coating is a plasma assisted chemical vapor deposition deposited coating prepared by providing the substrate to be coated in a vacuum chamber; providing a deposition gas comprising at least one oxygen source; and forming and maintaining a plasma in contact with the substrate to decompose the gas and deposit a reaction product coating of the silane, the unsaturated hydrocarbon and the, oxygen source on the substrate.

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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 May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 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.
FiledOctober 18, 1988
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329567 C
Classification (IPC)C23C16/50 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 18, 1988Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

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