Granted Patent
Utility
US 4,378,325 · App. 06/251,815
Process for quenching melt-spun filaments
Inventor:
Roland Waite
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Apr 7, 1981
Inventor
Roland Waite
Assignee (at issue)
Fiber Industries, 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.