Granted Patent
Utility
US 4,728,708 · App. 06/947,007
Thermoset polymers of styrene terminated tetrakis phenols
Inventors:
Joseph J. Zupancic, Andrew M. Zweig, James A. Wrezel
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Dec 29, 1986
Inventors
Joseph J. Zupancic
Andrew M. Zweig
James A. Wrezel
Assignee (at issue)
ALLIED CONSULTING, 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.