Miniature hearing aid
CA 1248217 A · Owner: Siemens Aktiengesellschaft · Inventors: Buttner, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A miniature hearing aid is disclosed with input transducer (18) amplifier (19) and control elements (8 10) as well as a current, source and output transducer (20) where at least a part of the, amplifier (19) is applied on mounting surfaces hinged together and lying on mounting plates (46 to 49) and the articulated connections (60 to 63) have a flexible support provided with electrically conducting tracks (50 to 52, 57). The desideratum is in view of the, small space in miniature hearing aids to obtain a large area for the, application of the structural part or elements. This is achieved according to the invention in that the amplifier (19) is designed as a multi-layered system which …
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 January 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.