Granted Patent
Utility
US 5,252,217 · App. 07/879,273
Blood coagulation factor XI concentrate having high specific activity, suitable for therapeutic use, and process for preparing same
Inventors:
Miryana Burnouf-Radosevich, Dominique Dernis
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: May 7, 1992
Inventors
Miryana Burnouf-Radosevich
Dominique Dernis
Assignee (at issue)
Association pour l'Essor de la Transfusion Sanguine dans la Region du Nord
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.