Granted Patent
Utility
US 5,008,007 · App. 07/509,725
Apparatus for filtering industrial process liquids
Inventor:
Raymond L. Anderson
Patented Case
View Patent ↗
Granted: Apr 16, 1991
Filed: Apr 16, 1990
Inventor
Raymond L. Anderson
Assignee (at issue)
H.R. Black Co., Inc.
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.