Granted Patent
Utility
US 3,994,628 · App. 05/243,897
Multiple recirculating toilet
Inventor:
James M. Kemper
Patented Case
View Patent ↗
Granted: Nov 30, 1976
Filed: Apr 13, 1972
Inventor
James M. Kemper
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.