Granted Patent
Utility
US 5,569,417 · App. 07/386,803
Thermoplastic compositions comprising filled, B-staged pitch
Inventors:
Leonard S. Singer, David T. Orient
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: Jul 27, 1989
Inventors
Leonard S. Singer
David T. Orient
Assignee (at issue)
Amoco Corporation
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.