Avalanche transceiver
CA 2443751 A1 · Owner: Kashuba, Douglas · Inventors: Kashuba, Douglas; Pachal, Edward G.; Pachal, Cynthia G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved battery-powered device and system for avalanche transceiver rescue. The device comprises a, transmitter a receiver, microcontroller firmware system graphic display, audio speaker and input switches residing in a single portable housing with a flip lid. When the Flip lid is closed, the system transmits a radio, frequency signal at a predetermined interval. When the flip lid is opened the , system deactivates the, transmitter and activates the receiver. The receiver comprises three mutually orthogonal tuned-coil, antennas. The system digitally processes the received signal strength and polarity of the signal from one or, more of the antennas to guide a user to a transmitting …
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 October 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.