Granted Patent
Utility
US 4,295,451 · App. 06/135,820
Closed loop fuel control for internal combustion engine
Inventor:
E. David Long
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Mar 31, 1980
Inventor
E. David Long
Assignee (at issue)
Allied Chemical Corporation
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.