Granted Patent
Utility
US 4,898,596 · App. 07/295,001
Exhaust process for simultaneously dyeing and improving the flame resistance of aramid fibers
Inventors:
Phillip H. Riggins, Peter Hauser
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jan 9, 1989
Inventors
Phillip H. Riggins
Peter Hauser
Assignee (at issue)
Burlington Industries LLC
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.