Granted Patent
Utility
US 5,352,376 · App. 08/019,606
Thermoplastic compatible conveyor lubricant
Inventor:
Timothy A. Gutzmann
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Feb 19, 1993
Inventor
Timothy A. Gutzmann
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.