Granted Patent
Utility
US 5,583,898 · App. 08/474,648
Apparatus and method for removing a wall portion from a wall of a tubular member
Inventors:
Jeffrey E. Hydeman, William G. Cole, Stephen M. Ira
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Sep 1, 1995
Inventors
Jeffrey E. Hydeman
William G. Cole
Stephen M. Ira
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.