Granted Patent
Utility
US 4,668,621 · App. 06/725,460
Detecting blood clotting factors with immobilized fibrinogen and labeled fibrinogen
Inventor:
George Doellgast
Patented Case
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Granted: May 26, 1987
Filed: Apr 22, 1985
Inventor
George Doellgast
Assignee (at issue)
WAKE FOREST UNIVERSITY
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.