Granted Patent
Utility
US 5,482,621 · App. 08/225,628
Septic tank outlet filter
Inventor:
Harry L. Nurse, Jr.
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Apr 11, 1994
Inventor
Harry L. Nurse, Jr.
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.