Granted Patent
Utility
US 5,700,573 · App. 08/428,691
Flexible biregional carbonaceous fiber, articles made from biregional carbonaceous fibers, and method of manufacture
Inventor:
Francis P. McCullough, Jr.
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Apr 25, 1995
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.