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Expired Canadian patentCanada

Method and apparatus for ultrasonic testing of an object

CA 2543261 C · Owner: Bestebreurtje, Pieter · Inventors: Bestebreurtje, Pieter

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Abstract From the Canadian patent

A method for ultrasonic testing of an object wherein at least one test moment , an ultrasonic test signal (S1 S2) is , transmitted into the object (2) while after a particular verification period (.DELTA.t1, .DELTA.t2) measured from said test moment an ultrasonic , verification signal (S1' S2') is transmitted into the object (2) a possible , echo of said test signal (S1 S2) being received from said , object (2) at a particular first measuring moment the possible echo being , accepted as being the echo (E1 E2) of said test signal (S1, S2) only when the echo (E1' E2') of the verification signal is received at a particular second measuring moment. In addition the , invention provides an …

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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 October 19, 2004 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 19, 2004
GrantedJanuary 22, 2013
Term endedOctober 19, 2024
Patent numberCA 2543261 C
Classification (IPC)G01N29/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 19, 2004Patent grantedJan 22, 2013Term endedOct 19, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.