Granted Patent
Utility
US 4,291,307 · App. 06/022,085
Planar alphanumeric display
Inventors:
Thomas B. Peelle, Roland K. Kolter
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Mar 19, 1979
Inventors
Thomas B. Peelle
Roland K. Kolter
Assignee (at issue)
International Telephone and Telegraph 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.