Granted Patent
Utility
US 4,439,483 · App. 06/492,528
Spray-suppression device
Inventor:
Earle R. Ellis
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: May 9, 1983
Inventor
Earle R. Ellis
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.