Piezoelectric composite actuator and manufacturing method
CA 2831366 C · Owner: The Government Of The United States As Represented By The Administrator Of The National Aeronautics And Space Administration · Inventors: Bryant, Robert; Fox, Robert; Wilkie, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for fabricating a piezoelectric macro-fiber composite actuator comprises providing a piezo-electric material which has a first side and a second side. The method further comprises cutting the piezoelectric material to provide a plurality of piezoelectric fibers in juxtaposition. Two electrically conductive films are then adhesively bonded to the two sides of the piezo-electric material. The first film has first and second conductive patterns formed thereon which are electrically isolated from one another and in electrical contact with the piezo-electric material.The first and second conductive patterns of the first film each have a plurality of electrodes to form a pattern of …
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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 June 29, 2000 and granted June 23, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2022.
- 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.