Thermoelectric product and method
CA 2228333 C · Owner: Omega Engineering, Inc. · Inventors: Baghai, Shahin; Mckinley, William Earl; Macchiarelli, Michael A. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermoelectric cold junction compensator connector module for use with a, thermoelectric device such as a thermistor thermocouple, or resistance-temperature device has, within a housing a cold junction compensator circuit which has means for linearization of voltage output of the circuit relative to input to the circuit. Preferably the circuit also includes potentiometer means for adjustment of at least one parameter of the circuit and means for, adjustment of its voltage output to correspond to degrees Centigrade and degrees Fahrenheit. In a preferred form there are included within the housing a pair of input terminals shielded by ferrite material against stray electromagnetic induction …
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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 January 29, 1998 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2020.
- 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.