Granted Patent
Utility
US 4,396,570 · App. 06/259,402
Nylon spin-draw process with steam conditioning
Inventors:
Frank L. Peckinpaugh, Michael K. Westmoreland
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: May 1, 1981
Inventors
Frank L. Peckinpaugh
Michael K. Westmoreland
Assignee (at issue)
ALLIED CONSULTING, 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.