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Expired Canadian patentCanada

A cartridge for an additive dispensing system

CA 2709448 C · Owner: Cruzen, William Joseph · Inventors: Arett, Richard Alan; Olson, Judd Dylan; Cruzen, William Joseph

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 cartridge for selectively dispensing an additive to water that includes a housing (130) a bladder (140) disposed within the housing (130) and a pump (150) connected to the housing (130) and in fluid communication with the bladder. The bladder (140) is configured to contain a consumable additive such as a flavor for water. The pump (150) is operable to selectively dispense an amount of the additive into water. The cartridge may be connected to a water filtration system such that the cartridge may dispense the additive into filtered water.

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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

  • Filed January 19, 2006 and granted March 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 19, 2006
GrantedMarch 26, 2013
Term endedJanuary 19, 2026
Patent numberCA 2709448 C
Classification (IPC)C02F1/68 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 19, 2006Patent grantedMarch 26, 2013Term endedJan 19, 2026

Sources & verification

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