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Expired Canadian patentCanada

Child-resistant dropper assembly

CA 1314838 C · Owner: West Company (The) · Inventors: Friedrich, Peter W.

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 child-resistant dropper closure container combination comprising a container having a finish at its discharge end including a plurality of locking fingers spaced apart to define a series of circumferentially spaced channels and having keeper slots, a cap having an annular top and a depending skirt and a plurality of locking lugs circumferentially spaced on the interior of the skirt and a dropper assembly mounted in the cap including a flexible biasing flange engageable with the container finish and the interior of the cap to normally bias the cap in a direction to retain it in a locked position wherein the lugs engage in the keeper slots and permitting axial and rotational movement of the …

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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 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 20, 1988
GrantedMarch 23, 1993
Term endedMarch 23, 2010
Patent numberCA 1314838 C
Classification (IPC)B65D47/18 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 20, 1988Patent grantedMarch 23, 1993Term endedMarch 23, 2010

Sources & verification

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