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Expired Canadian patentCanada

Electronically keyed dispensing systems and related methods of installation and use

CA 2548333 C · Owner: Allen, Spencer · Inventors: Allen, Spencer; Sayers, Richard; Hudgins, William

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Dispensing systems are disclosed which utilize electronically powered key devices and/or identification codes associated with a refill container to preclude the need for mechanical keys. One embodiment of the device utilizes a matching code stored in a radio frequency identification tag or bar code associated with a fluid refill container and an identification code associated with the dispenser housing. Matching of the codes by a controller allows for continued use of the dispenser via some type of operational mechanism. Another embodiment employs a key which carries the matching code. Yet another embodiment employs a blocking mechanism to prevent use of a dispenser's push bar if 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 December 15, 2004 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 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.
FiledDecember 15, 2004
GrantedJuly 3, 2012
Term endedDecember 15, 2024
Patent numberCA 2548333 C
Classification (IPC)B65D35/56

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 15, 2004Patent grantedJuly 3, 2012Term endedDec 15, 2024

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