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Expired Canadian patentCanada

Bottle closure cap for two-component packages

CA 1286639 C · Owner: Finke, Robert Gunter · Inventors: Schumacher, Clemens; Finke, Robert Gunter

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 bottle closure cap for two-component packages having a collar extending from the bottom of the cup-shaped cap which has a bottle screw-on thread on the inner wall of the cup, the collar bearing, via a thread which is directed opposite the bottle screw-on thread, a beaker which can be brought over projections seated on the outer side of its beaker cylindrical wall into non-rotatable but axially displaceable coupling engagement with the inner wall of the bottle neck, characterized by the fact that the front end (7') of the collar (7) comes into form-locked engagement in an annular groove (14) on the bottom (15) of the beaker (8).

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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 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.
FiledMarch 9, 1987
GrantedJuly 23, 1991
Term endedJuly 23, 2008
Patent numberCA 1286639 C
Classification (IPC)B65D41/26 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 9, 1987Patent grantedJuly 23, 1991Term endedJuly 23, 2008

Sources & verification

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