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Expired Canadian patentCanada

Portable programmer for hearing aids

CA 2079612 C · Owner: Darkes, Paul · Inventors: Stork, Michael; Arndt, Horst; Darkes, Paul

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

A programmer for programming hearing aids which have a controller for setting the audio response parameters of the hearing aid, and which can be fitted in a patient's ear. The programmer comprises data entry means, a display unit, a microcontroller and a communication interface. The hearing aids are coupled to the programmer either using a cable or through an infrared link using a lapel unit which has a short y-cable to the hearing aids. The fitter uses the data entry means i.e. a keypad, to program the parameters which are then shown, on the display unit. The display unit is divided into right and left ear display fields. Each display field includes a number of bar charts for displaying …

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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 1, 1992 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 1, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 1, 2014.
  • 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 1, 1992
GrantedAugust 17, 1999
Term endedOctober 1, 2012
Patent numberCA 2079612 C
Classification (IPC)G06F15/02 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedOct 1, 1992Patent grantedAug 17, 1999Term endedOct 1, 2012

Sources & verification

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