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Expired Canadian patentCanada

Carton with improved closure means

CA 1318892 C · Owner: Weber, Frank J. · Inventors: Weber, Frank J.

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

Abstract Of The Disclosure A carton for packaging a wide variety of dry frangible materials preferably formed from a unitary blank of foldable sheet material comprising respective pairs of opposed major and minor sidewall panels, a glue panel foldably joined to one of the major sidewall panels having a pouring opening formed therein a, plurality of closure flaps foldably joined to the upper and lower end portions of each of the respective sidewall panels all of, the respective panels and closure flaps being foldably joined to each other to form a carton assembly, a movable closure member attached to one of the minor sidewall panels adjacent the top end portion thereof and adaptable 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 June 8, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 8, 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 26, 1988
GrantedJune 8, 1993
Term endedJune 8, 2010
Patent numberCA 1318892 C
Classification (IPC)B65D5/70

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 26, 1988Patent grantedJune 8, 1993Term endedJune 8, 2010

Sources & verification

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