Granted Patent
Utility
US 5,155,410 · App. 07/668,598
Shadow mask type color cathode ray tube
Inventors:
Hiromi Wakasono, Osamu Adachi, Osamu Konosu, Shigeya Ashizaki
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Mar 13, 1991
Inventors
Hiromi Wakasono
Osamu Adachi
Osamu Konosu
Shigeya Ashizaki
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.