Granted Patent
Utility
US 6,329,653 · App. 09/653,038
Photoionization mass spectrometer
Inventors:
Jack A. Syage, Karl A. Hanold, Mark A. Hanning-Lee
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Sep 1, 2000
Inventors
Jack A. Syage
Karl A. Hanold
Mark A. Hanning-Lee
Assignee (at issue)
Syagen Technology
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.