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Expired Canadian patentCanada

Reclosable box liner

CA 1289088 C · Owner: Zieke, Larry M. · Inventors: Zieke, Larry M.

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

A reclosable plastic box liner having a reclosable fastener of a length relatively the same as that of the width of the box when the liner is filled with products such as cereals, crackers or chips. To achieve a liner having sufficient size to fill the box yet, having a reclosable fastener of a correct length the top section of the liner is cropped or chamfered at its ends generally above the product fill level of the liner. Preferably, the chamfered section is angled from the vertical at least from the product fill level to the reclosable fastener. 33,846-F

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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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 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.
FiledMay 25, 1987
GrantedSeptember 17, 1991
Term endedSeptember 17, 2008
Patent numberCA 1289088 C
Classification (IPC)B65D5/60

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 25, 1987Patent grantedSep 17, 1991Term endedSep 17, 2008

Sources & verification

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