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Expired Canadian patentCanada

Process for edging metal strip material and a linear quide therefor

CA 1285802 C · Owner: Julius Maschinenbau Gmbh · Inventors: Julius, Rolf

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

In a process for edging metal strips especially, nonferrous metal strips, by means of an edging machine wherein the longitudinally driven metal strip is guided between an upper and a lower linear guide and cutting tools are disposed successively along the line of movement of the strip, on either side of the linear guides. It is proposed according to the invention that a liquid or gaseous fluid be forced out of the central part of the linear guides at individual points along the line of the movement into the, clearance between the metal strip and the linear guides. In a linear guide for carrying out this process provision is, made according to the invention such that in each linear, guide …

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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 July 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 25, 1987
GrantedJuly 9, 1991
Term endedJuly 9, 2008
Patent numberCA 1285802 C
Classification (IPC)B23C3/12 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedFeb 25, 1987Patent grantedJuly 9, 1991Term endedJuly 9, 2008

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