Granted Patent
Utility
US 4,359,789 · App. 05/496,847
Sewerless disposal system
Inventor:
George Roberts
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Aug 12, 1974
Inventor
George Roberts
Assignee (at issue)
Monogram Industries 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.