Rf strip line resonator
CA 2198614 C · Owner: Lepping, Jurgen · Inventors: Lepping, Jurgen; Gapski, Dietmar; Detering, Volker
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RF strip line resonator, In order to compensate changes in the resonant frequency of the resonator occurring owing to fluctuations in the distance between the reference distance (d s) and an actual distance (d s~.DELTA.d s) in an RF strip line resonator with a strip line (10) which is arranged at a desired distance (d s) from a metallic conductor (11) the, strip line (10) is curved. This curvature induces eddy currents in the conductor (11). The eddy currents bring about a reduction in the inductance of the RF strip line resonator. The smaller/larger the distance between the strip line and the metallic conductor becomes the, smaller/larger this inductance becomes. Since shortening/ …
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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 August 23, 1995 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2017.
- 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.