Resistor component with multiple layers of resistive material
CA 2337471 A1 · Owner: Wang, Jiangtao · Inventors: Clouser, Sidney J.; Wang, Jiangtao; Centanni, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resistor foil, comprised of a copper layer having a first side and a second side. A tiecoat metal layer having a thickness of between 5 .ANG. and 70 .ANG. is disposed on, the first side of the copper layer. A first layer of a first resistor metal having a, thickness of between 100 .ANG. and 500 .ANG. is disposed on the tiecoat metal layer, and a, second layer of a second resistor metal having a thickness of between 100 .ANG. and 500, .ANG. is disposed on the first layer of the first resistor metal. The first resistor metal has a, resistance different from the second resistor metal.
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 February 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 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.