Granted Patent
Utility
US 4,485,328 · App. 06/370,050
Monochromatic picture tube
Inventors:
Chikayoshi Ninagawa, Shigeya Ashizaki, Masamichi Kimura, Atsushi Hosokawa
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Apr 20, 1982
Inventors
Chikayoshi Ninagawa
Shigeya Ashizaki
Masamichi Kimura
Atsushi Hosokawa
Assignee (at issue)
Matsushita Electronics 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.