Granted Patent
Utility
US 5,905,120 · App. 08/991,276
Polyetherimide compositions having improved environmental stress-crack resistance
Inventor:
M. Jamal El-Hibri
Patented Case
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Granted: May 18, 1999
Filed: Dec 16, 1997
Inventor
M. Jamal El-Hibri
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.