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Expired Canadian patentCanada

Container suitable for smaller quantities of fluid or semi-fluid substances

CA 1047459 A · Owner: Ab Helinos · Inventors: Af Ekenstam, Bo T.; Nordqvist, Erik G. P.

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 invention relates to a container for example a, tube, intended for substances such as for example fluid or semifluid liquids or pastes which can be rather crude. The container is composed of two more or less dome-shaped parts the opening-, ends of which are joined to each other. At least one of the domeshaped parts is made of flexible material in such a way that, this part can be pressed down into the other part having the effect that the container becomes emptied. In accordance with the invention, the opening-ends of the two dome-shaped parts have arbitrary cross sections, i.e. they can be circular eggshaped, or elliptical, and the size of the container is appropriate for being held …

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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 January 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 30, 1979
Term endedJanuary 30, 1996
Patent numberCA 1047459 A
Classification (IPC)B65D83/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 30, 1979Term endedJan 30, 1996

Sources & verification

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