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Expired Canadian patentCanada

Conformable tactile sensor

CA 1207055 A · Owner: At&T Technologies, Inc. · Inventors: Miller, Gabriel L.; Boie, Robert A.

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

Abstract A force sensor includes an elastic dielectric a, first plurality of conductive elements on one side of the dielectric and a second plurality of conductive elements on the opposite side of the dielectric. First signals are applied to one plurality of conductive elements through nonconductive coupling. Second signals representative of the forces on said elastic dielectric are generated responsive to the applied first signals coupled to the other plurality of conductive elements.

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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

  • Granted July 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 18, 1984
GrantedJuly 2, 1986
Term endedJuly 2, 2003
Patent numberCA 1207055 A
Classification (IPC)G01L1/00 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedApril 18, 1984Patent grantedJuly 2, 1986Term endedJuly 2, 2003

Sources & verification

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