Granted Patent
Utility
US 4,844,553 · App. 07/211,653
Dash control valve with differential trip
Inventor:
Joseph Bliss
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Jun 27, 1988
Inventor
Joseph Bliss
Assignee (at issue)
AlliedSignal, 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.