Granted Patent
Utility
US 5,357,166 · App. 07/870,088
Cathode-ray tube having alternating electric field reduction device
Inventors:
Takashi Sugahara, Kiyohiko Sato
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Apr 17, 1992
Inventors
Takashi Sugahara
Kiyohiko Sato
Assignee (at issue)
MITSUBISHI ELECTRIC 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.