Granted Patent
Utility
US 5,249,604 · App. 07/699,416
Tube plug for plugging a tube
Inventor:
Robert F. Keating
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: May 13, 1991
Inventor
Robert F. Keating
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.