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Expired Canadian patentCanada

Superoxide dismutasee

CA 1340329 C · Owner: Syn-Tek Ab · Inventors: Edlund, Thomas; Marklund, Stefan

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A superoxide dismutase originally found in extracellular body fluids and therefore termed extracellular superoxide dismutase (EC-SOD) is prepared by growing a cell line, preferably of mammalian origin producing EC-SOD and recovering the EC-SOD secreted from the cells or by inserting a DNA sequence encoding EC-SOD into a suitable vector introducing the recombinant vector into a host cell growing the cell and, recovering the EC-SOD produced. EC-SOD may be used for the prophylaxis or treatment of diseases or disorders associated with the presence or formation of superoxide radicals.

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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

  • Granted January 26, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2016.
  • 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 3, 1986
GrantedJanuary 26, 1999
Term endedJanuary 26, 2016
Patent numberCA 1340329 C
Classification (IPC)C12N15/53 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005200820112014Application filedSep 3, 1986Patent grantedJan 26, 1999Term endedJan 26, 2016

Sources & verification

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