Sensing and control devices using pressure sensitive resistive elements
CA 2265202 A1 · Owner: Escobosa, Marcus · Inventors: Escobosa, Marcus; Chen, Fusheng Frank; Hayes, Patrick H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for providing input information such as the position and movement of a cursor, or pointer to a control for a visual display screen having a gravity responsive member mounted, in a housing having a plurality of force sensitive resistive elements mounted in spaced relation to, one another said gravity responsive member being mounted in position to selectively apply, pressure on said resistive elements in response to the orientation of said housing.
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 March 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 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.