Granted Patent
Utility
US 5,331,158 · App. 07/988,043
Method and arrangement for time of flight spectrometry
Inventor:
Jerry T. Dowell
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Dec 7, 1992
Inventor
Jerry T. Dowell
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.