Visual warning apparatus for emergency vehicles
CA 1088038 A · Owner: Itt Industries, Inc. · Inventors: Knepshield, Robert E.; Peirish, Alfred J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A visual warning apparatus of the type used on police and fire department and other emergency vehicles in which a reflector is positioned relative to a rotating signal light so when the light rotates light rays de-, flected off the reflector will extend forwardly of the vehicle while producing a lateral shifting of the light rays. The reflector comprises a plurality of convex sections which produce a highly active light signal. -1-
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
- Granted October 21, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 21, 1997.
- 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.