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Expired Canadian patentCanada

Sperm cell preservation and processing systems

CA 2538118 C · Owner: Hollinshead, Fiona Kate · Inventors: Maxwell, William Maxwell Chisholm; Hollinshead, Fiona Kate; Evans, Gareth

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Abstract From the Canadian patent

The preservation of sperm cells, and other processing of sperm cells are , disclosed. The present invention is directed in some embodiments to sperm cell preservation, as sperm cell preservation may further relate to artificial insemination, in vitro fertilization, super-ovulation mammal production, sperm , samples, and sperm cell processing generally. The present invention is also directed in some embodiments to sperm cell processing features such as , collecting, handling, sorting storage, transportation, use, fertilization or , insemination techniques. Sperm cell preservation in accordance with the present invention may address maintenance or enhancement of sperm quality, and in …

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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 September 15, 2003 and granted January 7, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 15, 2003
GrantedJanuary 7, 2014
Term endedSeptember 15, 2023
Patent numberCA 2538118 C
Classification (IPC)C12N15/00 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 15, 2003Patent grantedJan 7, 2014Term endedSep 15, 2023

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