Granted Patent
Utility
US 4,220,972 · App. 06/041,453
Low contrast object extraction device
Inventors:
Meletios Geokezas, Rodney M. Larson, David V. Serreyn
Patented Case
View Patent ↗
Granted: Sep 2, 1980
Filed: May 22, 1979
Inventors
Meletios Geokezas
Rodney M. Larson
David V. Serreyn
Assignee (at issue)
Honeywell Limited
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.