Granted Patent
Utility
US 5,449,047 · App. 08/301,605
Automatic control of drilling system
Inventor:
George P. Schivley, Jr.
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: Sep 7, 1994
Inventor
George P. Schivley, Jr.
Assignee (at issue)
Ingersoll-Rand 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.