Granted Patent
Utility
US 4,633,362 · App. 06/806,583
Solenoid driven metering pump supply voltage compensation circuit
Inventor:
David Saunders
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Dec 9, 1985
Inventor
David Saunders
Assignee (at issue)
Pennwalt 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.