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Expired Canadian patentCanada

Keel and lock for wraparound article carrier

CA 1233792 A · Owner: The Mead Corporation · Inventors: Ikeda, Tamio

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Docket D-8007, KEEL AND LOCK FOR WRAPAROUND ARTICLE CARRIER ABSTRACT, A keel for a wraparound carrier in which lap panels at the ends of a wrapper blank are secured together in overlapping face contacting relation to form a tubular structure for packaging two rows of articles includes a separating tab struck from the inner lap panel and folded inwardly together with a shouldered locking tab adjoined to the outer one of the lap panels and which is driven through the aperture defined in the inner lap panel by the separating tab so as to cause the locking tab to occupy a position of face contacting relation with the separating tab and with the separating tab and the locking tab disposed in …

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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 March 8, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 8, 2005.
  • 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 10, 1984
GrantedMarch 8, 1988
Term endedMarch 8, 2005
Patent numberCA 1233792 A
Classification (IPC)B65D65/06 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedMay 10, 1984Patent grantedMarch 8, 1988Term endedMarch 8, 2005

Sources & verification

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