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Expired Canadian patentCanada

Package for a flowable material susceptible to flavor loss

CA 1332725 C · Owner: Hayes, Harry · Inventors: Nimmey, Alan; Hayes, Harry

CIPO record

Overview

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

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Abstract From the Canadian patent

A package comprising an elongated collapsible tube, defining a chamber to receive a flowable material with the tube, having a tapered shoulder and a hollow neck having an inner end, extending from the shoulder and an outer end. The shoulder, normally causes flavor loss of the material in the region of the chamber adjacent the shoulder. The package has an insert comprising a tubular section having an outer end connected to the neck, and an inner end extending into the chamber a sufficient distance to prevent extrusion of the material in the region of the shoulder through the neck.

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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 25, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 25, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 19, 1989
GrantedOctober 25, 1994
Term endedOctober 25, 2011
Patent numberCA 1332725 C
Classification (IPC)B65D35/28 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJuly 19, 1989Patent grantedOct 25, 1994Term endedOct 25, 2011

Sources & verification

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