Granted Patent
Utility
US 5,517,868 · App. 08/450,159
Method for obtaining a soil sample
Inventors:
David E. Turriff, Lloyd E. Jacobs
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: May 26, 1995
Inventors
David E. Turriff
Lloyd E. Jacobs
Assignee (at issue)
En Chem, 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.