Granted Patent
Utility
US 4,728,478 · App. 06/912,726
Polymer films containing platelet particles
Inventors:
William Sacks, John P. Sibilia, Abraham M. Kotliar, Harold D. Oltman, Shu-Ping Chen
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Sep 29, 1986
Inventors
William Sacks
John P. Sibilia
Abraham M. Kotliar
Harold D. Oltman
Shu-Ping Chen
Assignee (at issue)
AlliedSignal, 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.