Granted Patent
Utility
US 4,404,858 · App. 06/315,096
Velocity and mass air flow sensor
Inventor:
Chester J. Blechinger
Patented Case
View Patent ↗
Granted: Sep 20, 1983
Filed: Oct 26, 1981
Inventor
Chester J. Blechinger
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.