Device for tuning a microwave system
CA 2261583 A1 · Owner: Grell, Hans-Michael · Inventors: Pivit, Erich; Grell, Hans-Michael; Arnold, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tuning device which allows the fast periodical frequency tuning of a microwave system with simple mechanical means consists of one or several tuning elements (2, 3) which project into a wave guide (1) and are mounted to rotate around an axis (4) perpendicular to the longitudinal axis of the wave guide.
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 July 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 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.