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Expired Canadian patentCanada

Volume verification apparatus and method

CA 2211355 C · Owner: Kotlarik, John · Inventors: Kotlarik, John; Fowler, John Paul; Wroblewski, Mieczyslaw

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

Embodiments disclosed herein provide apparatus and methods for verifying a volume of fluid. According to one embodiment an apparatus includes a receptacle for containing fluid a first conductor operatively associated with the receptacle and a second conductor operatively associated with the receptacle offset from the first conductor. A source of a first electrical signal is electrically connected with the first conductor. A monitor is electrically connected with the second conductor for detecting a second electrical signal created in the second conductor. In another embodiment a method includes positioning a receptacle adjacent a fluid dispense nozzle such that fluid dispensed from 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

  • Filed January 17, 1996 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2018.
  • 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 17, 1996
GrantedMarch 27, 2001
Term endedJanuary 17, 2016
Patent numberCA 2211355 C
Classification (IPC)G01F22/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJan 17, 1996Patent grantedMarch 27, 2001Term endedJan 17, 2016

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