V-line skate with expandable axle
CA 2175492 C · Owner: Brandner, Jeannette L. · Inventors: Brandner, Ernest E.(Deceased)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mounting plate (20, 120) for a linear skate upon which a plurality of wheel supporting brackets (22 24, 26, & 28) are affixed in an equally spaced generally aligned, relationship. A wheel-receiving axle (32 34, 36 & 38) is, secured in each bracket with each axle intended to receive, thereon a closely fitting skate wheel (12 14, 16 & 18). Each axle has a novel, expansion-producing arrangement (52 62) enabling the outer end of the axle to be enlarged so as to tightly engage the non-rotatable inner portion (80) of a respective skate wheel. Each wheel is thus retained on its respective axle in a fully operational manner without fear, of the wheel coming off the end of the axle. The mounting …
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 May 19, 1995 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 2017.
- 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.