Modularized hearing aid circuit structure
CA 2265947 A1 · Owner: Siemens Hearing Instruments, Inc. · Inventors: Hanright, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A support structure for use in a hearing aid has a plurality of support stations where circuit boards may be mecanically supported. The structure is mounted to the faceplate of the aid in front of the opening where the battery is inserted. The support structure is formed by two assemblies; each assembly is made up of a circuit board and a battery terminal.
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
- Filed September 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2019.
- 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.