Granted Patent
Utility
US 4,812,708 · App. 06/695,885
Thin cathode-ray tube
Inventor:
Kern K. N. Chang
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Jan 29, 1985
Inventor
Kern K. N. Chang
Assignee (at issue)
RCA Licensing 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.