Granted Patent
Utility
US 5,541,152 · App. 08/294,000
Herbicide and fertilizer composition and method of using same
Inventor:
David J. Lehs
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Aug 19, 1994
Inventor
David J. Lehs
Assignee (at issue)
Platte Chemical Co.
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.