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Expired Canadian patentCanada

Phase shift measurement system

CA 2515008 C · Owner: Hach Company · Inventors: Inberg, Steven Bradley

CIPO record

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Abstract From the Canadian patent

A phase shift measurement system (100) comprises an excitation system (101) a , luminescent material (103), and a detection system (102). The excitation system (101) transfers an excitation light wave (112). The luminescent material (103) transfers a luminescent light wave (113) in response to the excitation light wave (112). The detection system (102) detects the luminescent light wave (113) and generates a corresponding luminescent signal (114). The detection system (102) processes the corresponding luminescent signal with DFT logic (108) to determine a phase shift between the excitation light wave (112) and the luminescent light wave (113).

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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 February 3, 2004 and granted October 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 2004
GrantedOctober 29, 2013
Term endedFebruary 3, 2024
Patent numberCA 2515008 C
Classification (IPC)G01N21/64 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 3, 2004Patent grantedOct 29, 2013Term endedFeb 3, 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.