Granted Patent
Utility
US 5,034,736 · App. 07/393,256
Bistable display with permuted excitation
Inventors:
Stewart Bennett, Leonard Polizzotto
Patented Case
View Patent ↗
Granted: Jul 23, 1991
Filed: Aug 14, 1989
Inventors
Stewart Bennett
Leonard Polizzotto
Assignee (at issue)
Polaroid 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.