Granted Patent
Utility
US 4,724,702 · App. 06/939,182
LPP sensor interface circuit
Inventor:
Glen C. Hamren
Patented Case
View Patent ↗
Granted: Feb 16, 1988
Filed: Dec 8, 1986
Inventor
Glen C. Hamren
Assignee (at issue)
General Motors LLC
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.