Granted Patent
Utility
US 5,149,232 · App. 07/757,445
Mechanical peck drill
Inventor:
Richard E. Eckman
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Sep 10, 1991
Inventor
Richard E. Eckman
Assignee (at issue)
Dresser 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.