Granted Patent
Utility
US 6,635,591 · App. 09/822,329
Glass composition for crystallized glass
Inventors:
Hideki Nagata, Hiroshi Yuki, Toshiharu Mori, Hideki Kawai, Kazuhiko Ishimaru
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Apr 2, 2001
Inventors
Hideki Nagata
Hiroshi Yuki
Toshiharu Mori
Hideki Kawai
Kazuhiko Ishimaru
Assignee (at issue)
Minolta 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.