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Expired Canadian patentCanada

Resilient squeeze bottle package for dispensing viscous products without belching

CA 1316508 C · Owner: Van Coney, Robert Henry · Inventors: Van Coney, Robert Henry

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 resilient squeeze bottle dispensing package capable of dispensing viscous products without excessive air entrainment and belching on successive dispensing cycles . In a preferred embodiment, the viscous product is preferably suspended inside a resilient squeeze bottle in a thin flexible bag. The flexible bag is secured about its perimeter to the interior of the squeeze bottle at its top and approximately at its midpoint to facilitate both complete emptying of product and desirable suckback characteristics when the opposed squeezing forces are removed from the resilient outer wall of the bottle. A suckback valve is located between the dispensing orifice in the shroud of the package and the …

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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 April 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 20, 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.
FiledAugust 26, 1988
GrantedApril 20, 1993
Term endedApril 20, 2010
Patent numberCA 1316508 C
Classification (IPC)B65D35/28 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedAug 26, 1988Patent grantedApril 20, 1993Term endedApril 20, 2010

Sources & verification

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