Granted Patent
Utility
US 4,775,458 · App. 06/944,159
Multifunctional antifoulant compositions and methods of use thereof
Inventor:
David R. Forester
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Dec 18, 1986
Inventor
David R. Forester
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.