Granted Patent
Utility
US 4,851,507 · App. 07/171,054
Melt processable aliphatic polycarbonate terpolymers
Inventors:
Haven S. Kesling, Jr., Michael J. Cannarsa, Hsiang-Ning Sun
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Mar 21, 1988
Inventors
Haven S. Kesling, Jr.
Michael J. Cannarsa
Hsiang-Ning Sun
Assignee (at issue)
Arco Chemical Technology, L.P.
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.