Granted Patent
Utility
US 4,297,006 · App. 06/077,863
Protective membrane for electrochromic displays
Inventor:
Saadi J. Bissar
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Sep 21, 1979
Inventor
Saadi J. Bissar
Assignee (at issue)
Timex 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.