Granted Patent
Utility
US 4,759,770 · App. 06/870,523
Process for simultaneously dyeing and improving the flame-resistant properties of aramid fibers
Inventors:
Barbara J. Cates, James K. Davis, Tanya E. FitzGerald, Ernest J. Russell
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Jun 4, 1986
Inventors
Barbara J. Cates
James K. Davis
Tanya E. FitzGerald
Ernest J. Russell
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.