Granted Patent
Utility
US 5,461,229 · App. 08/254,903
On-the-go optical spectroscopy soil analyzer
Inventors:
Gerald F. Sauter, George F. Nelson
Patented Case
View Patent ↗
Granted: Oct 24, 1995
Filed: Jun 6, 1994
Inventors
Gerald F. Sauter
George F. Nelson
Assignee (at issue)
Unisys Corporation
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.