Apparatus for determining the mechanical properties of a solid
CA 2076137 A1 · Owner: Rapoport, Alex · Inventors: Kantorovich, Edward; Rapoport, Alex
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for determining through an interposed, medium, the mechanical properties of a solid having a surface. The apparatus includes a) ultrasonic transmission apparatus located in a first location, for transmitting ultrasonic waves through the interposed medium and the solid generally parallel, to the surface, b) at least one ultrasonic receiver unit located, in each of second and third locations for receiving the, ultrasonic waves, wherein the first second and third locations, are colinear along the surface c) apparatus for locating the, receiver unit such that a first receipt time of an ultrasonic wave from the surface to the receiver unit at the second location is generally equivalent …
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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 August 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.