User disposable member for use within the ear canal and methods for manufacturing the same
CA 2596660 C · Owner: Kolpe, Vasant V. · Inventors: Oliveira, Robert J.; Babcock, Martin P.; Parish, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A user-disposable member (10) for placement and retention within the auditory anatomy, such as an ear canal . The user-disposable member includes a polymeric foam material, wherein the user-disposable member has a first portion (14) having a peripheral outer surface (22) having a first coefficient of friction, and a second portion (16) having a peripheral outer surface (20) having a second coefficient of friction different from the first coefficient of friction.
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 February 3, 2006 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.