Apparatus and method for making an ear warmer and an ear warmer frame
CA 2604254 C · Owner: 180S, Inc. · Inventors: Wilson, Ronald L. Ii; Werner, Justin Saul; Legette, Brian E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ear warmer (200) comprises a set of membranes (100 110, 120, 130) and a frame. The set of membranes collectively defines an outer perimeter. The set of membranes is attached along the outer perimeter to define an attachment portion (140). The attachment portion (140) is entirey disposed within an interior of the set of membranes. The frame is disposed within the interior of the set of membranes.
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 April 5, 2001 and granted July 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2023.
- 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.