Granted Patent
Utility
US 6,047,768 · App. 08/851,645
Process and apparatus for treating waste
Inventor:
Verne T. Buehler
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: May 6, 1997
Inventor
Verne T. Buehler
Assignee (at issue)
United States Filter Corporation
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.