Granted Patent
Utility
US 4,838,037 · App. 07/235,590
Solenoid valve with supply voltage variation compensation
Inventor:
Tony J. Wood
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Aug 24, 1988
Inventor
Tony J. Wood
Assignee (at issue)
American Standard Inc.
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.