Granted Patent
Utility
US 5,695,869 · App. 08/517,494
Melt-blown polyarylene sulfide microfibers and method of making the same
Inventors:
Andrew Auerbach, Warren Stephen Harmon
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Aug 21, 1995
Inventors
Andrew Auerbach
Warren Stephen Harmon
Assignee (at issue)
Hoechst Celanese 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.