Granted Patent
Utility
US 5,632,907 · App. 08/578,765
Traveling backwash manifold for a centrifuge
Inventor:
Fritz Norbury
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Dec 26, 1995
Inventor
Fritz Norbury
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.