Granted Patent
Utility
US 6,196,064 · App. 09/490,591
In situ underground sample analyzing probe
Inventors:
Franklin D. Patton, Jan J. Divis
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jan 25, 2000
Inventors
Franklin D. Patton
Jan J. Divis
Assignee (at issue)
Westbay Instruments, 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.