Granted Patent
Utility
US 4,293,340 · App. 06/198,634
Composition and process for stabilizing soil
Inventor:
Fred L. Metz
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Oct 20, 1980
Inventor
Fred L. Metz
Assignee (at issue)
Diamond Shamrock 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.