Granted Patent
Utility
US 6,101,638 · App. 09/305,159
Toilet utilizing air pressure, grinding and heat to produce a dry powder waste
Inventor:
Warren Scott Hammond
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: May 4, 1999
Inventor
Warren Scott Hammond
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.