Granted Patent
Utility
US 5,887,908 · App. 08/922,783
Pipe swivel joint assembly
Inventor:
Joseph Arnold White
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Sep 3, 1997
Inventor
Joseph Arnold White
Assignee (at issue)
Matrix Service 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.