Granted Patent
Utility
US 5,783,528 · App. 08/779,532
Synthetic lubricant based on enhanced performance of synthetic ester fluids
Inventor:
Douglas Rodenberg
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Jan 7, 1997
Inventor
Douglas Rodenberg
Assignee (at issue)
Diversey Lever, 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.