Granted Patent
Utility
US 4,793,421 · App. 07/073,910
Programmed automatic drill control
Inventor:
Richard A. Jasinski
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Jul 13, 1987
Inventor
Richard A. Jasinski
Assignee (at issue)
Becor Western 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.