Granted Patent
Utility
US 4,333,033 · App. 06/127,161
Anode contact spring and method thereof for color cathode ray picture tubes
Inventors:
Lowell A. Cordingley, Lester C. Gutschick
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Mar 4, 1980
Inventors
Lowell A. Cordingley
Lester C. Gutschick
Assignee (at issue)
Zenith Radio 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.