Cable-spooling casing for earphones
CA 2249769 C · Owner: Yang, Bill · Inventors: Yang, Bill
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cable-spooling casing is suitable for completely or partially spooling transmission cables of earphone for easy carriage. The cable-spooling casing includes, a first spooling guide having a first protuberance on its interior surface and a plurality of, slots around its perimeter. There is also a second spooling guide having a second, protuberance on its interior surface such that when the first protuberance of the first, spooling guide is joined to the second protuberance of the second spooling guide, a, groove for spooling cable is formed in the middle. There is at least one clip on the, exterior surface of the first cable-spooling guide for fixing the earphone transmission, cable …
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 7, 1998 and granted May 27, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2020.
- 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.