Granted Patent
Utility
US 5,657,704 · App. 08/589,986
Continuous high pressure solids pump system
Inventor:
Peter Schueler
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jan 23, 1996
Inventor
Peter Schueler
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.