Granted Patent
Utility
US 4,935,180 · App. 07/236,186
Formation of melt-spun acrylic fibers possessing a highly uniform internal structure which are particularly suited for thermal conversion to quality carbon fibers
Inventors:
Gene P. Daumit, Yoon Seok Ko, Christopher R. Slater, Jozef G. Venner, Chi C. Young
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Aug 25, 1988
Inventors
Gene P. Daumit
Yoon Seok Ko
Christopher R. Slater
Jozef G. Venner
Chi C. Young
Assignee (at issue)
BASF SE
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.