Granted Patent
Utility
US 4,493,895 · App. 06/404,344
Microbial degradation of obnoxious organic wastes into innocuous materials
Inventors:
Joseph F. Colaruotolo, Ronald H. Olsen, Peter A. Vandenbergh
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Jul 30, 1982
Inventors
Joseph F. Colaruotolo
Ronald H. Olsen
Peter A. Vandenbergh
Assignee (at issue)
Occidental Chemical 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.