Granted Patent
Utility
US 5,611,921 · App. 08/636,675
Sewage dewatering process and equipment
Inventor:
Franklin David Deskins
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Apr 23, 1996
Inventor
Franklin David Deskins
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.