Granted Patent
Utility
US 4,668,133 · App. 06/782,668
Boring bar assembly
Inventors:
Ira J. Campbell, John L. Morris, Thomas Whalen, Frederick R. Fields, Herbert Klingenhoff
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Oct 1, 1985
Inventors
Ira J. Campbell
John L. Morris
Thomas Whalen
Frederick R. Fields
Herbert Klingenhoff
Assignee (at issue)
Westinghouse Electric Company LLC
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.