Granted Patent
Utility
US 6,696,394 · App. 10/294,851
Conveyor lubricants for use in the food and beverage industries
Inventors:
Richard Ruhr, Gerald Wichman, Cathy M. Paquette, Tim Gutzman
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Nov 14, 2002
Inventors
Richard Ruhr
Gerald Wichman
Cathy M. Paquette
Tim Gutzman
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.