Granted Patent
Utility
US 6,189,212 · App. 09/393,801
Method for tube plug removal
Inventors:
Phillip J. Hawkins, Joseph A. Divella
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Sep 10, 1999
Inventors
Phillip J. Hawkins
Joseph A. Divella
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.