Granted Patent
Utility
US 5,328,302 · App. 07/831,821
Air feed peck drill
Inventor:
Richard E. Eckman
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Feb 6, 1992
Inventor
Richard E. Eckman
Assignee (at issue)
Indresco 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.