Granted Patent
Utility
US 6,819,977 · App. 10/330,043
Dispenser having multiple modes of operation
Inventors:
Ronald B. Howes, Jr., Robert Eugene May, David Howland
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Dec 24, 2002
Inventors
Ronald B. Howes, Jr.
Robert Eugene May
David Howland
Assignee (at issue)
ECOLAB 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.