Granted Patent
Utility
US 6,602,311 · App. 10/080,616
Method and apparatus for spinning a web of mixed fibers, and products produced therefrom
Inventor:
Richard M. Berger
Patented Case
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Granted: Aug 5, 2003
Filed: Feb 25, 2002
Inventor
Richard M. Berger
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.