Granted Patent
Utility
US 5,887,726 · App. 08/688,391
Coupling for connecting feed spout to screening machine
Inventor:
Stephen C. Mitchell
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Jul 30, 1996
Inventor
Stephen C. Mitchell
Assignee (at issue)
ROTEX, 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.