Granted Patent
Utility
US 5,629,249 · App. 07/185,620
Silicon carboxide fibers from gel spinning cyclosiloxane polymer precursors
Inventor:
Roger Leung
Patented Case
View Patent ↗
Granted: May 13, 1997
Filed: Apr 25, 1988
Inventor
Roger Leung
Assignee (at issue)
AlliedSignal, Inc.
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.