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Expired Canadian patentCanada

Depletion of endogenous primordial germ cells in avian species

CA 2513744 C · Owner: North Carolina State University · Inventors: Petitte, James N.; Pardue, Samuel Lloyd

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Abstract From the Canadian patent

Methods for modulating primordial germ cell (PGC) numbers and/or development in avians are provided. In one embodiment the presently disclosed subject , matter provides a method for modulating primordial germ cells numbers in an avian embryo comprising immunizing a female bird with an antigen associated with primordial germ cells, whereby an egg produced by the female bird comprises a sufficiently high concentration of antibodies specific for the antigen to modulate numbers of endogenous PGCs in an avian embryo present within in the egg. Also provided are methods for producing chimeric avians methods for increasing the proportion of male birds in a plurality of eggs methods of …

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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 January 16, 2004 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.
FiledJanuary 16, 2004
GrantedDecember 24, 2013
Term endedJanuary 16, 2024
Patent numberCA 2513744 C
Classification (IPC)C12N15/87 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJan 16, 2004Patent grantedDec 24, 2013Term endedJan 16, 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.