Granted Patent
Utility
US 4,244,727 · App. 06/010,115
Urea-formaldehyde solution for foliar fertilization
Inventor:
William P. Moore
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Feb 7, 1979
Inventor
William P. Moore
Assignee (at issue)
Ashland Oil, 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.