Granted Patent
Utility
US 4,456,062 · App. 06/449,467
Flow diverter
Inventors:
Joseph R. Roche, Gabriel G. Alexander, Larry Jack Tippit
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Dec 13, 1982
Inventors
Joseph R. Roche
Gabriel G. Alexander
Larry Jack Tippit
Assignee (at issue)
Hydril 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.