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Expired Canadian patentCanada

Adjustable volume brewer

CA 2544686 C · Owner: Bunn-O-Matic Corporation · Inventors: Bunn, Arthur H.

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

Beverage making apparatus which controllably produces a beverage from a brewing substance by combining heated water with a brewing substance. The beverage making apparatus includes a volume adjustment assembly (22) which can be controlled by a user to increase or decrease the volume of water which is controllably dispensed to the beverage making substance. The apparatus and method for using the apparatus includes controllably dispensing water from a water source such as a water reservoir (34) or pressurized water line to a controllable heated water reservoir (53). The heated water reservoir communicates with the spray head (40). A flow meter (46) is provided and communicates with a …

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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 November 5, 2004 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2024.
  • 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.
FiledNovember 5, 2004
GrantedMay 14, 2013
Term endedNovember 5, 2024
Patent numberCA 2544686 C
Classification (IPC)A47J31/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 5, 2004Patent grantedMay 14, 2013Term endedNov 5, 2024

Sources & verification

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