Charging circuit for radar transmitter
CA 2052031 C · Owner: Stegeman, Albert Pieter · Inventors: Stegeman, Albert Pieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved resonant charging circuit is disclosed for the charging of a pulse-forming network (5) from a voltage source (1) provided, with:, i) a first serial circuit provided with a switch (3) an, inductor (4), and a diode (11);, ii) a second serial circuit provided with a diode (6) the, inductor (4), a diode (10), and a switch (8); iii) a control unit (2) for opening and closing the switches (3 8).
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 23, 1991 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2013.
- 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.