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Expired Canadian patentCanada

Process and apparatus for testing cigarettes

CA 1304717 C · Owner: Focke & Co. (G.M.B.H. & Co.) · Inventors: Liedtke, Kurt; Focke, Heinz

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A process and apparatus to separate out defective cigarettes in an economical way, where cigarettes are tested in the region of magazine chutes of a cigarette magazine. The defective cigarettes identified are conveyed beyond a lower main expulsion plane and are separated out below this plane. For this purpose supporting members for the cigarettes are movable up and down at the bottom end of the magazine chutes. In prior art processes and apparatus, cigarettes are tested when the cigarettes are packaged.

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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 15, 1987
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304717 C
Classification (IPC)A24C5/34 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedApril 15, 1987Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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