Granted Patent
Utility
US 6,458,919 · App. 08/456,373
Fibers made of cycloolefin copolymers
Inventors:
Frank Osan, Michael-Joachim Brekner
Patented Case
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Granted: Oct 1, 2002
Filed: Jun 1, 1995
Inventors
Frank Osan
Michael-Joachim Brekner
Assignee (at issue)
Ticona LLC
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.