Granted Patent
Utility
US 4,286,164 · App. 06/120,472
Method for determining the average width of luminescent stripes of a viewing screen
Inventor:
Frank R. Ragland, Jr.
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Feb 11, 1980
Inventor
Frank R. Ragland, Jr.
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.