Resistive heaters and uses thereof
CA 2429983 A1 · Owner: Magnant, Gary P. · Inventors: Glenn, William A.; Abbott, Richard C.; Magnant, Gary P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metallic resistive heater includes an electrically conductive metallic component (330) (i.e. has low resistivity) and an oxide nitride, carbide, and/or boride derivative of the metallic component (330) that is electrically insulating (i.e. has high resistivity). The resistivity is controlled in part by controlling the amount of oxide, nitride carbide, and boride formation , during the deposition of the metallic component and the derivative.
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 November 28, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2023.
- 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.