Granted Patent
Utility
US 4,985,376 · App. 07/467,510
Conductive paste compositions and ceramic substrates
Inventors:
Kazuo Sunahara, Tsuneo Ichimatsu, Yumiko Aoki
Patented Case
View Patent ↗
Granted: Jan 15, 1991
Filed: Jan 19, 1990
Inventors
Kazuo Sunahara
Tsuneo Ichimatsu
Yumiko Aoki
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.