Granted Patent
Utility
US 5,730,864 · App. 08/431,833
Installation for treating an untreated flow by simple sedimentation after ballasting with fine sand
Inventors:
Francoise Delsalle, Nicholas Le Poder, Patrick Binot
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: May 1, 1995
Inventors
Francoise Delsalle
Nicholas Le Poder
Patrick Binot
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.