Granted Patent
Utility
US 4,290,671 · App. 06/122,722
Color encoding filter
Inventors:
Roland N. Rhodes, Alfred C. Schroeder, Warren H. Moles
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Feb 19, 1980
Inventors
Roland N. Rhodes
Alfred C. Schroeder
Warren H. Moles
Assignee (at issue)
RCA 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.