Granted Patent
Utility
US 5,313,822 · App. 07/911,371
Method and apparatus for pressure testing large vessels
Inventors:
William J. Bees, Dennis K. McDonald
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Jul 13, 1992
Inventors
William J. Bees
Dennis K. McDonald
Assignee (at issue)
The Babcock & Wilcox Company
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.