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Expired Canadian patentCanada

Intelligent inhaler providing feedback to both patient and medical professional

CA 2126331 C · Owner: Lanpher, Ted W. · Inventors: Lanpher, Ted W.; Lanpher, Gregory B.; Long, James

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

An inhaler device ( 100) for aerosol delivery of medication employs a microprocessor (220) and electronic sensors (230) for measuring parameters indicative of a patient's inhalation of airborne medication. The sensors produce output signals representative of parameters which determine the proper delivery of medication to receptor sites in the patient's lungs such as,the rate of flow of air through the inhaler device to the patient's lungs the, duration of inspiration of the medication and the volume of medication, inhaled. The microprocessor is responsive to the output signals of the sensors and stores a record of inhalation events which can be retrieved remotely or by connecting 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 December 18, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2014.
  • 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 18, 1992
GrantedJanuary 19, 1999
Term endedDecember 18, 2012
Patent numberCA 2126331 C
Classification (IPC)A61M15/00 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 18, 1992Patent grantedJan 19, 1999Term endedDec 18, 2012

Sources & verification

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