Infrared thermometer utilizing calibration mapping
CA 2098313 C · Owner: O'Hara, Gary J. · Inventors: Crill, Peter A.; O'Hara, Gary J.; Korff, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A body temperature thermometer has a probe head assembly which includes a first sensor, such as a thermopile for, generating a first output signal representative of an amount of infrared radiation impinging thereon. The probe head assembly further includes a waveguide and a surrounding hollow probe for receiving infrared radiation emitted by a biological surface tissue, such as the external ear canal and tympanic membrane of a patient, and directing the radiation to the first sensor. A second sensor is mounted in the probe head assembly for generating a second output signal representative of a temperature of the first sensor. A third sensor is thermally coupled to the waveguide for …
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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 11, 1991 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2013.
- 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.