Graffiti detection system and method of using the same
CA 2379540 A1 · Owner: Devine, Arthur J. · Inventors: Roberts, Donald L.; Devine, Arthur J.; Lerg, George W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention involves a system and method for detecting a graffitimaking act (130) such as the spray of a spray paint can (140) the writing , with a felt-marker pen on a surface (180) and the scratching with an abrasive , instrument on a surface (180). The system (100) includes one or more sensors (110) adapted to sense the graffiti-making act (130) and transmit a signal (360) representative of the graffiti-making act (130) and a base unit (120) , including electronics adapted to process the signal and determined whether the signal represents a graffiti-making act (130) and a communication device , (340) coupled to the electronics (210) and adapted to communicate to one or more …
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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
- Filed June 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2022.
- 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.