Hand held signal device
CA 2448017 A1 · Owner: Lynch, Ronald · Inventors: Lynch, Ronald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a hand held signal device for vehicular traffic control at crosswalks the , device is known to, have an octagon shaped metal sign mechanically connected to a rigid plastic handle. The device, is further comprised of two four-function flashing lights each comprised of five light emitting, diodes manually actuated by a momentary switch fixed to the handle. The operator may choose, the desired light function by compressing the momentary switch. The device is further, enhanced by light reflective materials on two sides of the metal octagon indicating the letter, S.T.O.P."
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 November 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2025.
- 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.