Granted Patent
Utility
US 5,925,977 · App. 08/958,562
Strengthened glass bulb for a cathode ray tube
Inventors:
Tsunehiko Sugawara, Toshihide Murakami
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Oct 27, 1997
Inventors
Tsunehiko Sugawara
Toshihide Murakami
Assignee (at issue)
ASAHI GLASS CO., 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.