Granted Patent
Utility
US 4,726,741 · App. 06/918,220
Magnetostrictive pump with hydraulic cylinder
Inventor:
Robert F. Cusack
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: Oct 14, 1986
Inventor
Robert F. Cusack
Assignee (at issue)
GTE Valeron 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.