Granted Patent
Utility
US 4,767,397 · App. 07/023,436
Apparatus for liquid separation
Inventors:
Rudolph Hohenberg, Carl Gustav Figdor, Willy S. Bont
Patented Case
View Patent ↗
Granted: Aug 30, 1988
Filed: Mar 9, 1987
Inventors
Rudolph Hohenberg
Carl Gustav Figdor
Willy S. Bont
Assignee (at issue)
Damon Corporation
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.