High voltage integrated circuit diode with a charge injecting node
CA 2216083 C · Owner: Lerma, Jaime · Inventors: Lerma, Jaime; Buhler, Steven A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrated CMOS diode with an injection ring which enables construction of an integrated CMOS diode that has the performance characteristics of a high impedance value, when the diode is in the off state and low, impedance, when the diode is in the on state in addition to high breakdown voltages using standard CMOS processing techniques to construct the integrated circuit diode.
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 September 22, 1997 and granted November 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2019.
- 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.