Granted Patent
Utility
US 5,547,409 · App. 08/330,735
Manufacturing method of picture tube
Inventors:
Koji Nakamura, Tetsushin Yazu
Patented Case
View Patent ↗
Granted: Aug 20, 1996
Filed: Oct 28, 1994
Inventors
Koji Nakamura
Tetsushin Yazu
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.