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Expired Canadian patentCanada

Captive dispensing cap construction

CA 1183809 A · Owner: Stull, Morton B. · Inventors: Stull, Morton B.

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

A captive dispensing cap construction for a container comprising a body part having a discharge passage and a, stopper extending upwardly from the passage. A screw cap part is carried by the body part and has a discharge opening into which the stopper extends when the screw cap part is screwed to its full-on position. The screw cap part and body part have two pairs of mutually engageable portions one, comprising cooperable screw thread means for moving the screw cap part axially on the body part as the cap part is turned and the other comprising a cam track on the body part and a follower portion on the screw cap part. The thread means has sufficient backlash to enable the screw cap part to …

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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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
  • 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 21, 1982
GrantedMarch 12, 1985
Term endedMarch 12, 2002
Patent numberCA 1183809 A
Classification (IPC)B65D47/20 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedApril 21, 1982Patent grantedMarch 12, 1985Term endedMarch 12, 2002

Sources & verification

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