Granted Patent
Utility
US 4,755,574 · App. 06/915,181
Acrylic polymers exhibiting chiral and nonlinear optical properties
Inventor:
Eui W. Choe
Patented Case
View Patent ↗
Granted: Jul 5, 1988
Filed: Oct 3, 1986
Inventor
Eui W. Choe
Assignee (at issue)
Hoechst Celanese Corporation
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.