Flexible electrostatic actuator
CA 2563406 C · Owner: Dausch, David E. · Inventors: Dausch, David E.; Goodwin, Scott H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrostatic actuator having a base including a first electrode and a flexible , membrane including at least two material layers of different materials in contact with each , other. At least one of the material layers includes a second electrode electrically isolated , from the first electrode. The flexible membrane includes a fixed end connected to the base , and a free end opposite the fixed end and spaced apart from the base. The second electrode , has at least first and second portions separated by a third portion and in combination defining , a first and second step provided in a vicinity of the fixed end.
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 April 25, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.