Granted Patent
Utility
US 4,978,485 · App. 07/223,909
Method for controlling a quench fluid velocity in a polymer melt spinning process
Inventors:
Paul Daugherty, Jerry R. McNair, Patrick F. O'Donnell
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Jul 25, 1988
Inventors
Paul Daugherty
Jerry R. McNair
Patrick F. O'Donnell
Assignee (at issue)
Amoco Corporation
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.