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Expired Canadian patentCanada

Sealing cap with a safety band

CA 1294579 C · Owner: Breuer, Hans-Werner · Inventors: Breuer, Hans-Werner; Bartl, Franz Thomas

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

The sealing cap (1) has a tear-off safety band (3) on its lower edge the, safety band having inwardly-projecting tongues (6) on its inner wall (5). A clip (7) is provided below each tongue. When a container opening is sealed for the first time, the tongues (6) are bent upwards and engage below a bulge on the container opening, The tongues are prevented from bending downwards by the clips (7), so that when the sealing cap is first removed the safety, band (3) is torn off.

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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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
  • 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 11, 1988
GrantedJanuary 21, 1992
Term endedJanuary 21, 2009
Patent numberCA 1294579 C
Classification (IPC)B65D41/34

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 11, 1988Patent grantedJan 21, 1992Term endedJan 21, 2009

Sources & verification

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