Granted Patent
Utility
US 6,489,281 · App. 09/659,795
Cleaning composition comprising inorganic acids, an oxidant, and a cationic surfactant
Inventors:
Kim R. Smith, Robert D. P. Hei, Michael E. Besse, Jerry D. Hoyt
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Sep 12, 2000
Inventors
Kim R. Smith
Robert D. P. Hei
Michael E. Besse
Jerry D. Hoyt
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.