Granted Patent
Utility
US 5,919,009 · App. 08/935,432
Boring system and method
Inventor:
Everett H. Stephenson, Jr.
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Sep 23, 1997
Inventor
Everett H. Stephenson, Jr.
Assignee (at issue)
Union Camp Corporation
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.