Bi-planar microwave switches and switch matrices
CA 2453058 A1 · Owner: Kwiatkowski, Regina · Inventors: Kwiatkowski, Regina
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microwave switch for transmitting signals having a plurality of ports and a plurality of signal paths for selective transmission of the signals. Each signal path is disposed between a respective pair of the ports and each signal path has a conducting state in which signal transmission occurs between the respective pair of ports and a non-conducting state in which signal transmission does not occur between the respective pair of ports. The switch also has a plurality of actuators each actuator being adapted to, actuate at least one of the signal paths between the conducting and non-conducting states. At least one of the ports and at least one of the signal, paths are located on a first …
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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 December 11, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2025.
- 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.