Flashing light apparatus
CA 1113566 A · Owner: Kruskopf, Hans G. · Inventors: Kruskopf, Hans G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a flashing light apparatus comprising a plurality of flashing light units connect-, ed in series, wherein each unit is arranged to produce a short flash in a predetermined time slot. The time slots allotted to a plurality of these units are so chosen that the first unit is first activated, and after a predetermined time or immediately thereafter, the second unit is then activated etc. This arrange-, ment gives the impression of a "travelling flash". Each flashing light unit has its own oscillator, to control the time delay between adjacent time slots, a control circuit to activate a, switching device, and a monostable multivibrator adapted to pro-, duce …
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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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
- 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.