Granted Patent
Utility
US 6,602,350 · App. 09/999,173
Composition and method for road-film removal
Inventors:
Mark Levitt, Terry J. Klos, Michael E. Besse, Robert D. P. Hei, Jerry D. Hoyt, Cathleen Norland, Victor Fuk-Pong Man
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Nov 30, 2001
Inventors
Mark Levitt
Terry J. Klos
Michael E. Besse
Robert D. P. Hei
Jerry D. Hoyt
Cathleen Norland
Victor Fuk-Pong Man
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.