Granted Patent
Utility
US 6,743,362 · App. 10/174,223
Sewage treatment process
Inventors:
James Porteous, Hiren Trivedi, Dennis Livingston
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Jun 17, 2002
Inventors
James Porteous
Hiren Trivedi
Dennis Livingston
Assignee (at issue)
Enviroquip 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.