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Expired European patentEurope

A method for isolating and purifying transferrin and lactoferrin receptor proteins from bacteria and the preparation of vaccines containing the same

EP 0528787 B1 · Applicant: UNIVERSITY TECHNOLOGIES INTERNATIONAL INC.

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 26, 1990 and granted December 2, 1998. A European patent lasts at most 20 years from filing, so its term ended April 26, 2010.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by October 26, 2015.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledApril 26, 1990
PublishedMarch 3, 1993
GrantedDecember 2, 1998
Term endedApril 26, 2010
Application numberEP 90906093
Classification (CPC)A61P31/04 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedApril 26, 1990PublishedMarch 3, 1993Patent grantedDec 2, 1998Term endedApril 26, 2010

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