Granted Patent
Utility
US 4,711,079 · App. 06/824,788
Roving blending for making sheath/core spun yarn
Inventors:
Feaster H. Newton, Kenneth Y. Wang
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jan 31, 1986
Inventors
Feaster H. Newton
Kenneth Y. Wang
Assignee (at issue)
Burlington Industries LLC
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.