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Expired Canadian patentCanada

Microwavable package

CA 1320698 C · Owner: Brown, William M. · Inventors: Decarlo, Frances; Brown, William 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

This relates to a carton for packaging a product which is to be processed in a microwave. The carton includes a top wall which is hinged to a portion of a rear wall and has a glue flap bonded to a removable portion of a front wall. The carton is formed of a delaminatable web with the top wall having transversely spaced score lines in opposite faces thereof whereby the carton is openable by removing the removable portion of the front wall and then peeling a major portion of the top wall from border portions thereof to open the carton. After the product has been removed, the top wall is swingable into the interior of the carton to form a support platform for the product. The support platform …

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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 July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 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.
FiledDecember 28, 1988
GrantedJuly 27, 1993
Term endedJuly 27, 2010
Patent numberCA 1320698 C
Classification (IPC)B65D5/54 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 28, 1988Patent grantedJuly 27, 1993Term endedJuly 27, 2010

Sources & verification

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