Granted Patent
Utility
US 5,752,453 · App. 08/593,684
Apparatus for use in applying fertilizer
Inventors:
Lee F. Nikkel, Eugene H. Schmidt
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Jan 29, 1996
Inventors
Lee F. Nikkel
Eugene H. Schmidt
Assignee (at issue)
AIT CO., LTD.
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.