Granted Patent
Utility
US 6,364,373 · App. 09/699,264
Corrugated pipe adapter and connection system
Inventor:
Robert D. Brockway
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Oct 27, 2000
Inventor
Robert D. Brockway
Assignee (at issue)
NPC CO., LTD.
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.