Front wheel brake for tandem wheeled roller skate
CA 2074587 C · Owner: De Santis, Mario · Inventors: De Santis, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roller skate with a plurality of skate rollers including a front roller has a front end brake comprising a brake wheel forwardly of the front roller with a braking member between the brake wheel and the front roller. The brake wheel has a lower reach above that of the front roller when the skate is in the rolling position on the rollers and the brake wheel in a brake released position. The brake wheel is movable rearwardly so that its periphery is against the brake member in a braking position when the skate is tipped forwardly away from the rolling position onto the brake wheel. A spring is provided which moves the brake wheel back to the brake released position when the skate is …
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 July 24, 1992 and granted December 2, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2014.
- 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.