Granted Patent
Utility
US 5,260,417 · App. 07/761,906
Megakaryocyte growth promoting activity protein
Inventors:
Barbara W. Grant, Kenneth G. Mann
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Sep 12, 1991
Inventors
Barbara W. Grant
Kenneth G. Mann
Assignees (at issue)
Genetics Institute, LLC
University of Vermont and State Agricultural College
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.