Granted Patent
Utility
US 4,319,142 · App. 06/190,708
Power generation unit for spillway gate structures
Inventor:
Howard A. Mayo, Jr.
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Sep 25, 1980
Inventor
Howard A. Mayo, Jr.
Assignee (at issue)
Allis-Chalmers 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.