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Expired Canadian patentCanada

Assessment of skeletal growth using measurements of nt-cnp peptides

CA 2570398 C · Owner: Nicholls, Michael Gary · Inventors: Prickett, Timothy Charles Ramsey; Nicholls, Michael Gary; Richards, Arthur Mark

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Abstract From the Canadian patent

A means of measuring and monitoring skeletal growth rate using a plasma analyte, amino-terminal C-type natriuretic peptide (NT-CNP). Plasma NT-CNP concentrations reflect the potential for further growth of the immature skeleton. Measurement of plasma NT -CNP in a subject when related to the mean , of an appropriate age and gender matched set of control subjects provides an , index of the severity of a growth disorder not otherwise available and facilitates diagnosis in children with undetected osteochondrodysplasias or other intrinsic disorders of the growth plate. The invention also provides a means of detecting and monitoring potentially harmful effects of drugs and other factors …

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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 June 17, 2004 and granted May 12, 2020. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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.
FiledJune 17, 2004
GrantedMay 12, 2020
Term endedJune 17, 2024
Patent numberCA 2570398 C
Classification (IPC)G01N33/53 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 17, 2004Patent grantedMay 12, 2020Term endedJune 17, 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.