Motion activated illuminating footwear and light module therefor
CA 2124107 C · Owner: Wut, Siu Bun · Inventors: Wut, Siu Bun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Motion activated illuminating footwear includes a heel having a transparent portion; and a light module positioned within the heel, the light module including two light emitting diodes (LEDs) for providing illumination, the LEDs being located so as to be visible exteriorly of the heel through the transparent portion thereof and the LEDs having positive and negative terminals, a printed circuit board supporting the LEDs a, battery for supplying power to the LEDs leads connecting, the positive terminals of the LEDs to the battery a, switch which alternately provides contact between the battery and the negative terminal of the LEDs upon movement of the footwear, the switch including a coil …
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 20, 1994 and granted February 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2016.
- 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.