Granted Patent
Utility
US 5,098,561 · App. 07/644,836
Machine for intercepting solid constituents in liquid streams
Inventor:
Wolfgang Grabbe
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Jan 23, 1991
Inventor
Wolfgang Grabbe
Assignees (at issue)
Berthold Schreiber
Erhard Schreiber
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.