Granted Patent
Utility
US 3,996,608 · App. 05/580,681
Hue correction apparatus having a restricted range
Inventor:
Leopold A. Harwood
Patented Case
View Patent ↗
Granted: Dec 7, 1976
Filed: May 23, 1975
Inventor
Leopold A. Harwood
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.