The method of obtaining the adjustable capacitor
CA 2214930 C · Owner: Zakharian, Manvel · Inventors: Zakharian, Manvel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method of obtaining the adjustable capacitor permits transforming all types of capacitors (including Electrolytic, Vacuum, Gas, high-voltage capacitors) into adjustable capacitors without moving parts inside capacitors and provides broad ranges of changing the capacity of adjustable capacitors in electric circuits of direct and alternating current and in all types of Marx Generators. The method comprising the steps of: choosing at least two capacitors or two groups of capacitors with the same capacities; sustaining absolute values of potential differences on said first and second capacitors or on said first and second groups of capacitors equal to each other; changing the capacity of …
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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 October 31, 1997 and granted January 16, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 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.