Granted Patent
Utility
US 5,615,039 · App. 07/757,454
Electro-optical element and its manufacturing method
Inventor:
Francois J. Henley
Patented Case
View Patent ↗
Granted: Mar 25, 1997
Filed: Sep 10, 1991
Inventor
Francois J. Henley
Assignee (at issue)
PhotoDynamic Inc.
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.