Granted Patent
Utility
US 6,322,288 · App. 09/542,079
Storm or waste water chamber featuring strain relief notches for flexing and contouring the chamber
Inventor:
Robert J. DiTullio
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Apr 3, 2000
Inventor
Robert J. DiTullio
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.