Granted Patent
Utility
US 4,614,790 · App. 06/668,044
Melt processable optically anisotropic polyesters
Inventors:
David A. Hutchings, Gloria M. Sieloff, David M. Lee, G. Fred Willard
Patented Case
View Patent ↗
Granted: Sep 30, 1986
Filed: Nov 5, 1984
Inventors
David A. Hutchings
Gloria M. Sieloff
David M. Lee
G. Fred Willard
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.