Granted Patent
Utility
US 4,980,957 · App. 07/410,515
Improved method of incremently drawing fibers
Inventor:
Martin V. Sussman
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Sep 21, 1989
Inventor
Martin V. Sussman
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.