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Expired Canadian patentCanada

Multi-function control system for an artificial upper-extremity prosthesis for above-elbow amputees

CA 1047145 A · Owner: United States Department Of Commerce · Inventors: Graupe, Daniel

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

An apparatus for actuating a prosthetic appliance employs as few as one pair of surface electrodes and provide several movements. The apparatus samples the myoelectric signal, compares a minimum number of parameters of such signals with a range of values of these same parameters and, actuates the prosthetic appliance whenever the current data for the sampled parameters is within a preselected domain chosen on the basis of historical data.

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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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 23, 1979
Term endedJanuary 23, 1996
Patent numberCA 1047145 A
Classification (IPC)G05D27/02 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 23, 1979Term endedJan 23, 1996

Sources & verification

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