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Canadian application, no grantCanada

Biotelemetric method for transmitting bioelectric potential differences and device for transmitting ecg signals

CA 2026583 A1 · Owner: Guggenbuhl, Walter · Inventors: Grogg, Fritz; Guggenbuhl, Walter

CIPO record

Overview

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

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Abstract From the Canadian patent

A biotelemetry method for the transmission of bioelectric potential differences, occurring between more than two electrodes applied on a patient, from the patient to an evaluator that is intended and designed for processing and recording bioelectric potential differences the tranfer of the, signals between the patient and the evaluator being effectuated as electromagnetic and particularly optical one-way connection from the patient to the evaluator while there is no, electric connection between the electrodes and the evaluation device, characterized in that, at the patient's end one of the electrodes is designated as reference electrode to which the potentials of all the remaining …

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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 January 23, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 23, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 23, 1990
GrantedNo grant recorded
Term endedJanuary 23, 2010
Patent numberCA 2026583 A1
Classification (IPC)A61B5/04 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJan 23, 1990Term endedJan 23, 2010

Sources & verification

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