Granted Patent
Utility
US 5,407,619 · App. 08/131,686
Process for preparing a fiber precursor of metal compound, and a process for preparing a fiber of metal
Inventors:
Hiroshi Maeda, Mamoru Shoji
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Oct 6, 1993
Inventors
Hiroshi Maeda
Mamoru Shoji
Assignee (at issue)
Mitsubishi Kasei 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.