Granted Patent
Utility
US 5,177,629 · App. 07/714,440
Liquid crystal display with an optical fluid layer
Inventor:
William K. Bohannon
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: Jun 13, 1991
Inventor
William K. Bohannon
Assignee (at issue)
Proxima 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.