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Expired Canadian patentCanada

Steroid hormone analysis by mass spectrometry

CA 2519557 C · Owner: Soldin, Steven J. · Inventors: Soldin, Steven J.

CIPO record

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Abstract From the Canadian patent

Methods, systems and kits for the simultaneous or sequential analysis of one or more hormones by mass spectrometry are disclosed. The methods require minimal sample size and minimal preparation time. The methods comprise ionizing the hormones and analyzing the hormones by mass spectrometry. In addition, methods, systems and kits for the simultaneous or sequential analysis of steroid hormones are disclosed comprising ionization of the steroid hormones by photoionization.

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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 April 14, 2004 and granted February 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 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.
FiledApril 14, 2004
GrantedFebruary 19, 2013
Term endedApril 14, 2024
Patent numberCA 2519557 C
Classification (IPC)G01N27/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 14, 2004Patent grantedFeb 19, 2013Term endedApril 14, 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.