Granted Patent
Utility
US 6,020,469 · App. 09/292,222
Stem cell factor formulations and methods
Inventor:
Susan Irene Hershenson
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Apr 15, 1999
Inventor
Susan Irene Hershenson
Assignee (at issue)
Amgen Inc.
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.