Granted Patent
Utility
US 5,753,145 · App. 08/458,388
Polarizer films with high thermal and hygroscopic stability
Inventors:
Chia-Chi Teng, Hyun-Nam Yoon, Mohammad Mortazavi
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Jun 2, 1995
Inventors
Chia-Chi Teng
Hyun-Nam Yoon
Mohammad Mortazavi
Assignee (at issue)
Hoecst Celanese Corp.
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.