Granted Patent
Utility
US 5,508,491 · App. 07/930,054
Electronic mass airflow sensor circuit and method for manufacturing same
Inventor:
James Sherman
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Aug 14, 1992
Inventor
James Sherman
Assignee (at issue)
Ford Motor Company
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.