Granted Patent
Utility
US 6,686,741 · App. 10/117,985
Multiple-tuned circuit and probe for NMR spectrometer
Inventor:
Kenichi Hasegawa
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Apr 8, 2002
Inventor
Kenichi Hasegawa
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.