Granted Patent
Utility
US 5,336,017 · App. 07/893,555
Leaching system conduit with interlocking end joint
Inventor:
James M. Nichols
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Jun 3, 1992
Inventor
James M. Nichols
Assignee (at issue)
INFILTRATOR SYSTEMS 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.