Elastomeric micro electro mechanical systems
CA 2218876 C · Owner: Bolleman, Brent J. · Inventors: Whitehead, Lorne A.; Bolleman, Brent J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electromechanical transducer having a substrate (4) bearing a plurality of elastomeric microstructures (5) with a microelectrode (6) on each microstructure. A power supply (11) is connected to the microelectrodes for controlled application to them of an electrical potential which alternately induces forces of attraction between adjacent pairs of microelectrodes causing controlled, time-varying displacement of the microelectrodes. Alternatively, a further plurality of microelectrodes (14) or one or more , macroelectrodes (32), are elastomerically supported above the microelectrodes with the power supply being connected to the macroelectrode(s) such that the electrical potential …
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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 April 26, 1996 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2018.
- 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.