Stress sensor
CA 2441268 A1 · Owner: Gore, Jonathan Geoffrey · Inventors: Tomka, George Jiri; Maylin, Mark Gregory; Milne, James Carl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stress or magnetic field sensor comprises a generally elongate magnetically soft amorphous or nanocrystalline electrically resistive element and biasing means for applying to the element a bias magnetic field of which the component directed along the length of the sensor has an amplitude variation pattern along the element. A periodically varying pattern has the effect of reducing the sensitivity of a stress sensor to external ambient fields (figure 3 shows that with a sawtooth bias field the sensitive portions a of a sensor move to positions b in the presence of an ambient field but their number remains the , same). A ramped bias field enables the position of the sensitive region …
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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 March 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2024.
- 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.