Granted Patent
Utility
US 5,593,955 · App. 08/360,380
Method for reducing the pour point of an oil and compositions for use therein
Inventor:
Charles L. Kissel
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Dec 21, 1994
Inventor
Charles L. Kissel
Assignee (at issue)
Entek Corporation
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.