Tag and system for patient safety monitoring
CA 2260577 C · Owner: Exi Wireless Systems Inc. · Inventors: Federman, Vladimir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The tag includes: a tag for monitoring the security of a patient the tag comprising, a housing having a wall the wall having an inner surface and an outer surface an electronic circuit located in the housing the electronic circuit including an alarm circuit including a capacitance measuring circuit the capacitance measuring circuit having first and second electrodes the first and second electrodes located adjacent the inner surface and in spaced relation from one another to form a capacitor the alarm circuit having means for generating an alarm signal upon the capacitance measuring circuit detecting a level of capacitance corresponding to an alarm condition whereby the outer surface of the …
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 February 1, 1999 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 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.