A transmission system for a mobile communications signal
CA 2326770 A1 · Owner: Martin, Andrew Charles · Inventors: Martin, Andrew Charles; Syme, Cameron Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission system, including a first modem at a first location including a first demodulator for receiving and demodulating RF mobile communications signals into digital signals and a first modulator for modulating digital signals into RF mobile communications signals and a second modem at a second , location including a second demodulator for receiving and demodulating RF mobile communications signals into digital signals and a second modulator for modulating digital signals into RF mobile communications signals wherein the , output of the first demodulator is connected to the second modulator and the , output of the second demodulator is connected to the first modulator by , …
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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 31, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2021.
- 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.