Granted Patent
Utility
US 5,744,664 · App. 08/341,306
Cycloolefin copolymers (COCS) as substrate material for liquid-crystal displays
Inventors:
Michael-Joachim Brekner, Dietmar Jungbauer
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Nov 16, 1994
Inventors
Michael-Joachim Brekner
Dietmar Jungbauer
Assignee (at issue)
Hoechst GmbH
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.