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Expired Canadian patentCanada

Child-resistant locking means for a container

CA 1111002 A · Owner: Sunbeam Plastics Corporation · Inventors: Julian, Randall K.

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 child-resistant locking means for a container has a threaded neck and a closure therefor. The closure has an inner threaded skirt and an outer more flexible skirt on the lower margin of which there is at least one axially extending depending, lug. The container has an abutment near but spaced radially, from, the base of the neck. The abutment has a face that lies in a radial plane of the container and an outer surface that extends inwardly from the outer edge of the abutment face angularly across the normal circular path of the closure lug. When the closure is turned onto the container neck the lug (1) engages, the outer surface of the abutment and is flexed outwardly thereby, (2) snaps …

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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 October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 25, 1978
GrantedOctober 20, 1981
Term endedOctober 20, 1998
Patent numberCA 1111002 A
Classification (IPC)B65D55/02 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 25, 1978Patent grantedOct 20, 1981Term endedOct 20, 1998

Sources & verification

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