Granted Patent
Utility
US 6,780,905 · App. 10/178,196
Flame-proof polyester molding compositions comprising ZnS
Inventors:
Matthias Bienmuller, Michael Wagner
Patented Case
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Granted: Aug 24, 2004
Filed: Jun 24, 2002
Inventors
Matthias Bienmuller
Michael Wagner
Assignee (at issue)
Bayer Aktiengesellschaft
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.