An arrangement for supplying power to a hollow wave-guide intended for electromagnetic microwaves
CA 2012048 C · Owner: Telefonaktiebolaget Lm Ericsson · Inventors: Lagerlof, Rolf Owe Esbjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow waveguide for electromagnetic microwaves supports an adaptation chamber on one side thereof. The chamber includes a frame structure and a cover member and is provided with an adapter line. The hollow waveguide is a ridge waveguide having a longitudinally extending ridge. The chamber is connected electrically to an outer conductor of a coaxial line through which the arrangement is supplied with power with an electromagnetic microwave. One end of the adapter line is connected electrically to the adaptation chamber whereas the, other end is connected electrically to a centre conductor of the coaxial line. The ridge waveguide is supplied with power from the adaptation chamber through a …
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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 March 13, 1990 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2012.
- 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.