Tongue activated communications controller
CA 2005703 C · Owner: Ortiz, John E. · Inventors: Fortune, Daniel; Ortiz, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a tongue activated communications controller which includes an intra-oral transmitter assembly having a keyboard having a plurality of tongue activatable positions for encoding a signal depending on the position activated and a transmitter for transmitting encoded signals. The intra-oral transmitter assembly includes a two sided printed circuit board. The first side includes electronics for transmitting signals and the second side includes circuitry for switching from one position to another. The controller further includes a receiver for receiving the encoded signals from the transmitter. The receiver sends the signal to a microcomputer for decoding the encoded signals …
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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 15, 1989 and granted May 7, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2011.
- 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.