Granted Patent
Utility
US 4,738,787 · App. 07/054,028
Cationic soil release polymers
Inventors:
Anthony J. O'Lenick, Jr., Joseph J. Fanelli
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: May 26, 1987
Inventors
Anthony J. O'Lenick, Jr.
Joseph J. Fanelli
Assignee (at issue)
Alkaril Chemicals, 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.