Granted Patent
Utility
US 6,602,369 · App. 09/347,360
Process for producing laminated sheet comprising alumina fiber precursor
Inventors:
Mamoru Shoji, Norio Ikeda, Toshiaki Sasaki
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Jul 6, 1999
Inventors
Mamoru Shoji
Norio Ikeda
Toshiaki Sasaki
Assignee (at issue)
MITSUBISHI CHEMICAL 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.