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Expired Canadian patentCanada

Method and apparatus for dispense verification

CA 2202649 C · Owner: Abunimeh, Noman · Inventors: Sohl, Gordon; Abunimeh, Noman; Kotlarik, John

CIPO record

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Abstract From the Canadian patent

Embodiments disclosed herein provide apparatuses and methods for verifying dispense of a fluid from a dispense nozzle. According to one method a path of , electromagnetic radiation from a source to a receiver is obstructed with the fluid dispensed from the dispense nozzle. The intensity of the electromagnetic radiation received by the receiver is measured. The measured intensity is compared with a predetermined intensity to verify the dispense of fluid from the dispense nozzle. One apparatus for verifying dispense of a fluid comprises a source of electromagnetic radiation, and a receiver of the electromagnetic radiation from the source of the electromagnetic radiation operatively …

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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 October 6, 1995 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 6, 1995
GrantedDecember 19, 2000
Term endedOctober 6, 2015
Patent numberCA 2202649 C
Classification (IPC)G01N1/38 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedOct 6, 1995Patent grantedDec 19, 2000Term endedOct 6, 2015

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