Granted Patent
Utility
US 3,930,832 · App. 05/570,102
Inhibition of corrosive action of zinc-containing fertilizer solutions
Inventors:
James E. Sansing, Joseph Novotny
Patented Case
View Patent ↗
Granted: Jan 6, 1976
Filed: Apr 21, 1975
Inventors
James E. Sansing
Joseph Novotny
Assignee (at issue)
Allied Chemical 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.