Granted Patent
Utility
US 5,817,586 · App. 08/837,334
Colored ceramic composition
Inventors:
Kazuo Harada, Hiroshi Usui, Tsuneo Manabe
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Apr 11, 1997
Inventors
Kazuo Harada
Hiroshi Usui
Tsuneo Manabe
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.