Ear warmer having a curved ear portion
CA 2535445 C · Owner: Tipp, Alan S. · Inventors: Le Gette, Brian E.; Reeb, David L.; Tipp, Alan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ear warmer comprises a frame disposed within a cavity of a shell. The frame includes a band portion and an ear portion. The ear portion includes an inner side disposed adjacent a head of a user when the ear warmer is worn by a user. In one embodiment, the ear portion is curved toward the inner side of the ear portion. In one embodiment, the ear portion is configured to flex when the ear warmer is disposed on a head of a user.
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 August 11, 2004 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2026.
- 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.