Granted Patent
Utility
US 4,364,993 · App. 06/167,987
Sized carbon fibers, and thermoplastic polyester based composite structures employing the same
Inventors:
Robert Edelman, Paul E. McMahon, Gene P. Daumit
Patented Case
View Patent ↗
Granted: Dec 21, 1982
Filed: Jul 14, 1980
Inventors
Robert Edelman
Paul E. McMahon
Gene P. Daumit
Assignee (at issue)
Celanese GmbH
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.