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Expired Canadian patentCanada

Anticocking high torque removal closure assembly

CA 1287325 C · Owner: Afa Products, Inc. · Inventors: Beruvides, Mario G.

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 anticocking high torque removal closure assembly comprises a container having a neck a cap, threadingly received on the neck a first thread on the, neck, a second thread in the cap and a rib in the cap, spaced from a revolution of the second thread and having a sharp outer edge. The first thread has an upper surface, a side surface and a lower surface the, second thread has an upper surface a side surface and, a lower surface. A first "allowable cock dimension" (ACD) is defined between a horizontal line through the junction of the side surface and the lower surface of the second thread and a horizontal line through the junction of the neck with the upper surface of the first thread when …

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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 August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledJuly 15, 1987
GrantedAugust 6, 1991
Term endedAugust 6, 2008
Patent numberCA 1287325 C
Classification (IPC)B65D41/04 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJuly 15, 1987Patent grantedAug 6, 1991Term endedAug 6, 2008

Sources & verification

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