Granted Patent
Utility
US 4,565,636 · App. 06/550,476
Self-contained flow through sewage waste disposal system
Inventors:
Kenneth J. DeGraw, Brian Wilcockson, Earl W. Nickerson, William R. Bocchini, Armen Bogossian, Steve Proios
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Nov 9, 1983
Inventors
Kenneth J. DeGraw
Brian Wilcockson
Earl W. Nickerson
William R. Bocchini
Armen Bogossian
Steve Proios
Assignee (at issue)
American Standard 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.