Granted Patent
Utility
US 5,765,598 · App. 08/546,583
Pipe construction
Inventors:
James B. Goddard, Lester Gabriel
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Oct 23, 1995
Inventors
James B. Goddard
Lester Gabriel
Assignee (at issue)
Advanced Drainage 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.