Granted Patent
Utility
US 4,334,170 · App. 06/079,926
Means and method for providing optimum resolution of T.V. cathode ray tube electron guns
Inventor:
Robert G. Rockwell
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Sep 28, 1979
Inventor
Robert G. Rockwell
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.