Granted Patent
Utility
US 5,770,091 · App. 08/703,548
Method of plain sedimentation and physical-chemical sedimentation of domestic or industrial waste water
Inventors:
Patrick Binot, Valery Ursel, Michel Badard
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Aug 27, 1996
Inventors
Patrick Binot
Valery Ursel
Michel Badard
Assignee (at issue)
Omnium de Traitement et de Valorisation
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.