Granted Patent
Utility
US 4,285,646 · App. 06/149,370
Apparatus for quenching melt-spun filaments
Inventor:
Roland Waite
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: May 13, 1980
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.