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Expired Canadian patentCanada

Easy opening gable top carton

CA 1291092 C · Owner: Premium Brand Juice & Drinks Inc. · Inventors: Poole, Donald A.

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 invention addresses the problem of providing a gable top carton having a secure seal, but which can easily be opened. The gable top carton includes a gable closure of which includes opposed side panels with side flaps extending therefrom and opposed end panels with end flaps extending therefrom to a lower height than the flaps of the side panels, said side panels and end panels having score lines to facilitate closing and opening the, opposed side flaps being adhered to each other and the end flaps being adhered to the lower portions of the side flaps, characterized in that an unsealed area is left at the centre of upper portion of an end flap to facilitate opening of the carton by a …

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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 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1988
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1291092 C
Classification (IPC)B65D5/06

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMarch 11, 1988Patent grantedOct 22, 1991Term endedOct 22, 2008

Sources & verification

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