Roller skate
CA 2361669 A1 · Owner: Rosso, Michele · Inventors: Rosso, Michele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shoe-plate (124), adapted to hold a boot of a user is pivotally mounted on , the middle portion of an elongated frame (110). The frame has one or two rear wheels (116) and a fork (118) pivoted on its front portion around a vertical axis, and supporting a front wheel (122). Steering means (66 68, 70, 72) , connect the shoe-plate with the fork so that a pivotal movement of the shoeplate causes a pivotal movement of the fork. The shoe-plate may be pivoted around a vertical or a longitudinal, horizontal axis. In the latter case the , skate also comprises adaptable restraining means (74 76, 77) connecting the , trunk of the user to the frame.
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 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2022.
- 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.