Granted Patent
Utility
US 5,100,032 · App. 07/588,659
Reservoir for collecting dissolved solid detergent solution
Inventors:
Ronald E. Burdorf, John E. Thomas, Dale W. Groth, Lee J. Monsrud
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Sep 26, 1990
Inventors
Ronald E. Burdorf
John E. Thomas
Dale W. Groth
Lee J. Monsrud
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.