Granted Patent
Utility
US 5,512,523 · App. 08/372,835
Monolithic refractory powder mixture
Inventors:
Yasushi Ono, Satoshi Sakamoto, Yutaka Murata, Tetsuo Kaji, Yasuhiko Endo
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Jan 13, 1995
Inventors
Yasushi Ono
Satoshi Sakamoto
Yutaka Murata
Tetsuo Kaji
Yasuhiko Endo
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.