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Expired Canadian patentCanada

Method and apparatus for cleaning a long metal substrate, such as a wire, a band, a cord, etc. as well as substrates cleaned according to that method and objects of polymer material reinforced with such substrates

CA 1315920 C · Owner: Lievens, Hugo · Inventors: Colpaert, Alex; Chambaere, Daniel; De Gryse, Roger

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Abstract From the Canadian patent

12 -, ABSTRACT :, METHOD AND APPARATUS FOR CLEANING A LONG METAL SUBSTRATE SUCH AS A WIRE, A BAND, A CORD. ETC. AS WELL AS SUBSTRATES CLEANED ACCORDING TO THAT METHOD AND OBJECTS OF POLYMER MATERIAL REINFORCED WITH SUCH SUBSTRATES The invention relates to a method and apparatus for continuously cleaning a long metal substrate such as a wire, a, band, a cord, etc. the long substrate to be cleaned being led through a vacuum chamber, whereinto an inert sputtering gas, such as argon, is fed, and a sufficiently high voltage being maintained between the substrate as cathode and an anode present in the chamber so that an electric discharge takes place between the two electrodes as a result of …

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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
  • 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 19, 1988
GrantedApril 13, 1993
Term endedApril 13, 2010
Patent numberCA 1315920 C
Classification (IPC)C23G5/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 19, 1988Patent grantedApril 13, 1993Term endedApril 13, 2010

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