Granted Patent
Utility
US 6,404,133 · App. 09/536,038
Cathode ray tube device that reduces magnetic field leakage
Inventors:
Yukio Uchida, Tomoaki Iwamoto, Katsuyo Iwasaki
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Mar 27, 2000
Inventors
Yukio Uchida
Tomoaki Iwamoto
Katsuyo Iwasaki
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.