Granted Patent
Utility
US 4,286,285 · App. 06/118,213
Checkerboard color filter providing tolerance
Inventor:
Roland N. Rhodes
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Feb 4, 1980
Inventor
Roland N. Rhodes
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.