Granted Patent
Utility
US 4,376,743 · App. 06/273,135
Melt spinning process
Inventor:
John R. Dees
Patented Case
View Patent ↗
Granted: Mar 15, 1983
Filed: Jun 12, 1981
Inventor
John R. Dees
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.