Granted Patent
Utility
US 6,372,677 · App. 09/701,911
Low thermal expansion and high rigidity ceramic sintered body
Inventors:
Tetsuro Nose, Hidehiko Morita, Fumiaki Takahashi
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Dec 5, 2000
Inventors
Tetsuro Nose
Hidehiko Morita
Fumiaki Takahashi
Assignee (at issue)
NIPPON STEEL CORPORATION
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.