Patent Yard Sign in
Expired Canadian patentCanada

Hearing aid programming interface

CA 1301305 C · Owner: Rising, Rolf Christer · Inventors: Rising, Rolf Christer

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A programmable hearing aid having a battery compartment which holds a battery under normal operating conditions but which is also adapted to hold a coupler member for connecting an external programming device to the hearing aid is disclosed. To connect an external programming device to the hearing aid, lead wires in contact with the programming device are contacted with battery and programming terminals in the battery compartment by means of a coupling member. The coupling member is shaped to fit in the battery compartment and has electrodes in contact with the lead wires from the programming device arranged for contacting the battery and programming terminals in the battery compartment.

Read the whole patent

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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1989
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301305 C
Classification (IPC)H04R25/02

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMay 9, 1989Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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