Granted Patent
Utility
US 4,542,320 · App. 06/579,504
Cathode ray tube
Inventors:
Hiroshi Suzuki, Masao Natsuhara, Chisato Kurusu
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Feb 13, 1984
Inventors
Hiroshi Suzuki
Masao Natsuhara
Chisato Kurusu
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.