Granted Patent
Utility
US 4,284,588 · App. 06/023,378
Fuel system
Inventor:
Irving H. Hallberg
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Mar 23, 1979
Inventor
Irving H. Hallberg
Assignee (at issue)
BorgWarner Inc.
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.