Granted Patent
Utility
US 4,884,443 · App. 07/137,220
Control and detection circuitry for mass airflow sensors
Inventors:
Ki Wook Lee, Charles R. Cook Jr.
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Dec 23, 1987
Inventors
Ki Wook Lee
Charles R. Cook Jr.
Assignee (at issue)
Siemens-Bendix Automotive Electronics L.P.
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.