Hearing aid battery door seal
CA 2447284 A1 · Owner: Morales, Nelson · Inventors: Sacha, Mike K.; Morales, Nelson; Fideler, Brian L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hearing aid having a battery door seal that substantially reduces or eliminates unwanted air flow from and into a battery compartment is provided. Eliminating unwanted air flow removes a potential source of acoustic feedback and, provides significant improvement in frequency response of the hearing aid. The hearing aid includes a battery compartment with sidewalls that have a step joint, formed between an opening in a faceplate to the battery compartment and a substantially flat portion of the sidewalls. The battery door has a lip that sets on the, step joint when the battery door closes providing an air seal around a substantial, portion of the battery compartment. A thin slit is …
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 October 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2025.
- 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.