Granted Patent
Utility
US 5,656,155 · App. 08/560,160
Thermophilic aerobic waste treatment system
Inventors:
Kenneth L. Norcross, Yanlong Li
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Nov 20, 1995
Inventors
Kenneth L. Norcross
Yanlong Li
Assignee (at issue)
IP LLC
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.