Granted Patent
Utility
US 5,763,103 · App. 08/904,791
Biregional precursor fiber having an outer oxidation stabilized region and method of manufacture
Inventor:
Francis P. McCullough, Jr.
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Aug 1, 1997
Inventor
Francis P. McCullough, Jr.
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.