Granted Patent
Utility
US 4,764,908 · App. 06/850,520
Magnetohydrodynamic fluid transducer
Inventor:
Sedley J. Greer, Jr.
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Apr 11, 1986
Inventor
Sedley J. Greer, Jr.
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.