Granted Patent
Utility
US 6,786,362 · App. 10/298,305
Swing-away hopper tee
Inventor:
David E. Sisk
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Nov 18, 2002
Inventor
David E. Sisk
Assignee (at issue)
Sure Seal, 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.