Granted Patent
Utility
US 6,503,392 · App. 09/824,400
Distribution box for a wastewater treatment system
Inventor:
James E. Tyson
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Apr 2, 2001
Inventor
James E. Tyson
Assignee (at issue)
Zabel Environmental Technology
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.