Ultrasonic detector
CA 1322400 C · Owner: Fellingham, George · Inventors: Fellingham, George; Lawless, Michael; Pastrone, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an ultrasonic liquid detector comprising an ultrasonic sound generator and an ultrasonic sound receiver spacedly disposed from one another so as to receive a liquid carrying member therebetween; and wherein each of said sound generator and sound receiver includes a substrate, a layer of conductive material on said substrate, said conductive layer having at least two regions electrically isolated from each other a piezoelectric chip placed in electric contact over at least a portion of the first region of said conductive layer, and a conductive member extending between said piezoelectric chip and the second region of said conductive layer; whereby an electrical …
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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 September 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 21, 2010.
- 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.