Metabolic calorimeter employing respiratory gas analysis
CA 2379188 A1 · Owner: Barber, Theodore W. · Inventors: Pearce, Edwin M. Jr.; Barber, Theodore W.; Lawrence, Craig M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An indirect calorimeter for measuring the metabolic rate of a subject is provided, which includes a respiratory calorimeter (10) configured to be supported in contact with the subject, passing inhaled and exhaled gases as the subject breathes. A flow pathway (22) is operable to receive and pass inhaled and exhaled gases having a first end in fluid communication with the respiratory connector (20) and a second end is in fluid communication with a source and sink for respiratory gases. A flow meter generates electrical signals as a function of the instantaneous flow volume of inhaled and exhaled gases passing through the flow pathway. A component gas concentration sensor (84) …
Read the whole patent
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 August 2, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2022.
- 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.