Granted Patent
Utility
US 4,315,763 · App. 06/119,429
High analysis liquid fertilizers
Inventors:
Jerry Stoller, Harold A. Hartung
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Feb 7, 1980
Inventors
Jerry Stoller
Harold A. Hartung
Assignee (at issue)
Stoller Enterprises, 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.