Granted Patent
Utility
US 5,310,091 · App. 08/060,894
Dual product dispenser
Inventors:
Walter B. Dunning, Robert L. Bundschuh
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: May 12, 1993
Inventors
Walter B. Dunning
Robert L. Bundschuh
Assignee (at issue)
TREMCO INCORPORATED
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.