Granted Patent
Utility
US 4,253,986 · App. 06/069,942
Ammonia synthesis gas production
Inventor:
Talmage D. McMinn, Jr.
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Aug 24, 1979
Inventor
Talmage D. McMinn, Jr.
Assignee (at issue)
Monsanto Company
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.