Granted Patent
Utility
US 4,861,518 · App. 07/226,609
Non-filming high performance solid floor cleaner
Inventors:
Stephen A. Morganson, John L. Beecher
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Aug 1, 1988
Inventors
Stephen A. Morganson
John L. Beecher
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.