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Expired Canadian patentCanada

Cathode for vacuum sputtering treatment machine

CA 2492172 C · Owner: Labalme, Lionel · Inventors: Labalme, Lionel; Aulagner, Michel

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention concerns a cathode for vacuum sputtering treatment machine comprising a target plate (2) mounted on a support (3) arranged to act as cooler. The invention is characterized in that the support (3) is secured to a frame (5) defining a closed space (6) for positioning and centering the target (2) said frame (5) including peripherally a profiled catching rim (5d) designed to co-operate with an assembly of independent toe-in elements (8) having complementary catching shapes (8a) adapted to allow a tilting effect of said elements (8) producing a clamping action exerted on members (9) engaged in the thickness of the elements and supported on part of the catching rim of the frame (5) …

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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 July 8, 2003 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 8, 2003
GrantedApril 15, 2014
Term endedJuly 8, 2023
Patent numberCA 2492172 C
Classification (IPC)C23C14/34

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 8, 2003Patent grantedApril 15, 2014Term endedJuly 8, 2023

Sources & verification

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