Granted Patent
Utility
US 5,793,038 · App. 08/763,964
Method of operating an ion trap mass spectrometer
Inventor:
Sidney E. Buttrill, Jr.
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Dec 10, 1996
Inventor
Sidney E. Buttrill, Jr.
Assignee (at issue)
Varian, Inc.
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.