Detachable skate
CA 2371043 A1 · Owner: Chu, Wei-Yen · Inventors: Chu, Wei-Yen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a detachable skate having two sets of engagement members containing two female members and two male members which are correspondingly fitted to a sole at the bottom of the shoe and a mounting, plate at the top of the skating device. The female members and the male members, can be connected with each other by means of the engagement of a projecting pin, into the bottom end of the vertical part of the L-shaped guide slot. Moreover one, male member is provided with a lever for turning this male member. Accordingly, the shoes are detachable from the skating devices so that it's convenient to assemble, stable and safe to use.
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 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2024.
- 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.