Granted Patent
Utility
US 5,339,867 · App. 07/806,173
Composite metal tube and method of making the same
Inventors:
Ralph A. Iorio, Glen A. Gibbs
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Dec 12, 1991
Inventors
Ralph A. Iorio
Glen A. Gibbs
Assignee (at issue)
ITT Corporation
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.