Granted Patent
Utility
US 5,010,487 · App. 07/317,893
Computer-based engine diagnostic method
Inventor:
Van T. Stonehocker
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Mar 2, 1989
Inventor
Van T. Stonehocker
Assignee (at issue)
COLTEC 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.