Granted Patent
Utility
US 5,362,491 · App. 08/190,451
Modified biologically active protein composition
Inventor:
Yutaka Mizushima
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Feb 2, 1994
Inventor
Yutaka Mizushima
Assignees (at issue)
Yutaka Mizushima
ASAHI GLASS CO., LTD.
SEIKAGAKU KOGYO KABUSHIKI KAISHA
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.