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Expired Canadian patentCanada

Manufacturing containers

CA 1319816 C · Owner: Gill, David Charles · Inventors: Gill, David Charles

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 container for example for herbicide, is, manufactured by securing a flexible wall (8) to a rigid housing part (2), and subsequently deforming the flexible wall (8), in a plastic manner into a, predetermined configuration. A further housing part possibly complementary to the housing part (2) may, then be applied to the housing part (2) in order to provide a closed chamber which is divided by the flexible wall (8) into two compartments. The flexible wall (8) is preferably deformed into a configuration which enables it to lie, unstressed, against the internal surface of the housing part (2) so that, herbicide contained in the cavity between the housing part (2) and the flexible wall (8) can …

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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 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 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.
FiledMarch 15, 1989
GrantedJuly 6, 1993
Term endedJuly 6, 2010
Patent numberCA 1319816 C
Classification (IPC)B65B47/02 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMarch 15, 1989Patent grantedJuly 6, 1993Term endedJuly 6, 2010

Sources & verification

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