Granted Patent
Utility
US 5,174,914 · App. 07/642,065
Conveyor lubricant composition having superior compatibility with synthetic plastic containers
Inventor:
Timothy A. Gutzmann
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Jan 16, 1991
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.