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Expired Canadian patentCanada

Improved composite cap including tamper indicating band

CA 2036320 C · Owner: Begley, Douglas G. · Inventors: Lecinski, Frank H.; Marshall, F. Paul; Begley, Douglas G.

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

This relates to an improved tamper band construction for use in conjunction with closure caps for locking beneath a retaining bead on a container neck finish when the closure cap is removed to indicate rotation of the closure cap. The tamper indicating band is provided with a plurality of flaps which are initially molded in a radially inwardly axial, downwardly directed position and then are folded upwardly to radially inwardly and axially upwardly directed positions where they are engagable beneath a container retaining bead. Most particularly the, plurality of flaps are joined in groups by connecting bridges so that each group of flaps pivot as a unit will the connecting bridges …

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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

  • Filed February 14, 1991 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 14, 1991
GrantedApril 16, 2002
Term endedFebruary 14, 2011
Patent numberCA 2036320 C
Classification (IPC)B65D55/02 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 14, 1991Patent grantedApril 16, 2002Term endedFeb 14, 2011

Sources & verification

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