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Canadian application, no grantCanada

Electrorheological fluid composite structures

CA 2175067 A1 · Owner: Novicova, Zoja Anatoljevna · Inventors: Matsepuro, Alina Danilovna; Demchuk, Svetlana Antonovna; Kordonsky, William Ilyitch

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This invention relates to laminated composite structure elements containing electrodes flexible laminae which may also serve as electrodes, and an electrorheological fluid located between the flexible laminae. The rheological properties of the electrorheological fluid and its cohesive force with solid surfaces may be changed by applying an electric field and the mechanical properties of the whole laminated composite structure may thereby be varied.

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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 October 26, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 26, 1993
GrantedNo grant recorded
Term endedOctober 26, 2013
Patent numberCA 2175067 A1
Classification (IPC)F16F9/53 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedOct 26, 1993Term endedOct 26, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.