Granted Patent
Utility
US 4,219,348 · App. 05/960,401
Storage-stable nitrogen-zinc foliar spray compositions
Inventors:
Thomas M. Parham, Jr., James E. Sansing
Patented Case
View Patent ↗
Granted: Aug 26, 1980
Filed: Nov 16, 1978
Inventors
Thomas M. Parham, Jr.
James E. Sansing
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.