Granted Patent
Utility
US 5,113,832 · App. 07/704,605
Method for air density compensation of internal combustion engines
Inventor:
Michael E. Heffron
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: May 23, 1991
Inventor
Michael E. Heffron
Assignee (at issue)
Pacer Industries, 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.