Granted Patent
Utility
US 5,672,296 · App. 08/460,288
Polarizer films comprising wholly aromatic liquid crystalline polymers and dichroic dyes
Inventors:
Sunny S. Shen, Hyun-Nam Yoon, Mohammad Mortazavi
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Jun 2, 1995
Inventors
Sunny S. Shen
Hyun-Nam Yoon
Mohammad Mortazavi
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.