Granted Patent
Utility
US 4,890,930 · App. 07/142,953
Automatic sampling apparatus
Inventor:
Hidenori Nohso
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Jan 12, 1988
Inventor
Hidenori Nohso
Assignee (at issue)
Mitsubishi Chemical Industries, Ltd.
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.