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Expired Canadian patentCanada

Liner bag for use in containers

CA 1266444 C · Owner: Ichiki, Shigemi · Inventors: Kadokura, Keiji; Naniwa, Hisamoto; Uchida, Susumu

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

The liner bag for use in containers comprises a bag main body having bottom, side, front and upper faces corresponding to the configuration on the inner walls of a container, in which the joining edge between the upper face and the side face is bent convexly toward the opposed joining edge, engaging members for detachably engaging the bag main body near the upper and lower four corners on the front thereof to the container, a pair of engaging metal members attached respectively to the two upper corners on the container door side and a pair of side belts which are attached along the joining edges between the upper face and both of the side faces, the ends of which are led out from the ends …

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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 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 24, 1986
GrantedMarch 6, 1990
Term endedMarch 6, 2007
Patent numberCA 1266444 C
Classification (IPC)B65D33/06 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedJune 24, 1986Patent grantedMarch 6, 1990Term endedMarch 6, 2007

Sources & verification

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