Granted Patent
Utility
US 5,928,047 · App. 08/853,404
Planar member for shadow mask of cathode-ray tube and manufacturing method of shadow mask
Inventors:
Mayumi Ishibashi, Jun Araya, Takami Okamoto
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: May 9, 1997
Inventors
Mayumi Ishibashi
Jun Araya
Takami Okamoto
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.