Expired Canadian patentCanada
Otoplastic with an integrated module, in-ear otoplastic and method for adapting otoplastics
CA 2419950 C · Owner: Hessel, Hans · Inventors: Widmer, Christoph; Weidmann, Markus; Hessel, Hans
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an in-ear hearing aid whose shell (65) is rubberelastic. This enables the shell to be changed modularly without changing the electronics module on which it is mounted.
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 25, 2000 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 2000
GrantedJuly 17, 2012
Term endedSeptember 25, 2020
Patent numberCA 2419950 C
Classification (IPC)H04R25/00
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.