Granted Patent
Utility
US 4,787,989 · App. 07/143,581
Anionic soil release compositions
Inventors:
Joseph J. Fanelli, Randy L. Rayborn, Donald G. Jenkins, Anthony J. O'Lenick, Jr.
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Jan 13, 1988
Inventors
Joseph J. Fanelli
Randy L. Rayborn
Donald G. Jenkins
Anthony J. O'Lenick, Jr.
Assignee (at issue)
GAF 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.