Granted Patent
Utility
US 6,159,263 · App. 09/416,370
Sewage sludge recycling with a pipe cross-reactor
Inventors:
Gary D. Greer, Gary L. Dahms
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Oct 12, 1999
Inventors
Gary D. Greer
Gary L. Dahms
Assignee (at issue)
UNITY CORPORATION, INC.
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.