Granted Patent
Utility
US 5,952,831 · App. 08/911,339
Automatic sample exchange device
Inventors:
Yoshiaki Yamakoshi, Nobuo Kudo
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Aug 14, 1997
Inventors
Yoshiaki Yamakoshi
Nobuo Kudo
Assignee (at issue)
JEOL 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.