Granted Patent
Utility
US 5,687,782 · App. 08/632,037
Transfer valve for a granular materials dispensing system
Inventors:
Bruce Cleveland, Albert M. Benedetti, Jr., Richard D. Simon, Paul A. Nolte
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Apr 12, 1996
Inventors
Bruce Cleveland
Albert M. Benedetti, Jr.
Richard D. Simon
Paul A. Nolte
Assignee (at issue)
Ingersoll-Dresser Pump Company
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.