Granted Patent
Utility
US 4,981,495 · App. 07/379,513
Methods for stabilizing gasoline mixtures
Inventor:
Dwight K. Reid
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Jul 13, 1989
Inventor
Dwight K. Reid
Assignee (at issue)
Betz Laboratories, 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.