Granted Patent
Utility
US 4,762,621 · App. 06/929,973
Itaconate ester copolymers as scale inhibitors
Patented Case
View Patent ↗
Granted: Aug 9, 1988
Filed: Nov 13, 1986
Assignee (at issue)
B. F. Goodrich Company
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.