Method and apparatus for exhalation analysis
CA 2097499 C · Owner: Gazzara, Peter · Inventors: Gazzara, Peter; Burke, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a method for determining human expiratory flow rate comprising a peak flow meter (36) and a zone calculator (49). The peak flow meter (36) is used to determine what the user's peak expiratory flow rate is in conjunction with medical data compiled on the zone calculator. The individual's peak expiratory flow rate and predetermined sub-optimal values ate applied to the peak flow meter as color zone settings (38 40, 42). The peak flow meter (36) thus set is ready for the individual to use to determine whether he is functioning in the peak expiratory flow rate color zone or one of the sub-optimal expiratory, flow rate color zones. The color zones correspond to specific …
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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 2, 1992 and granted April 13, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.