Granted Patent
Utility
US 5,800,542 · App. 08/940,581
Sterilization by gamma irradiation
Inventor:
Shu-Tung Li
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Sep 30, 1997
Inventor
Shu-Tung Li
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.