Granted Patent
Utility
US 4,655,897 · App. 06/670,571
Electrophoretic display panels and associated methods
Inventors:
Frank J. DiSanto, Denis A. Krusos
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Nov 13, 1984
Inventors
Frank J. DiSanto
Denis A. Krusos
Assignee (at issue)
Copytele, 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.