Granted Patent
Utility
US 5,340,501 · App. 07/608,009
Solid highly chelated warewashing detergent composition containing alkaline detersives and Aminocarboxylic acid sequestrants
Inventor:
Richard E. Steindorf
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Nov 1, 1990
Inventor
Richard E. Steindorf
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.