Granted Patent
Utility
US 4,758,641 · App. 07/017,966
Polycarboxylic acids with small amount of residual monomer
Inventor:
Chin C. Hsu
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Feb 24, 1987
Inventor
Chin C. Hsu
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.