Granted Patent
Utility
US 4,858,288 · App. 06/719,129
Method vortex action yarn hairiness reduction
Inventors:
John B. Hodgin, John H. Sumner, Kenneth Y. Wang
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Apr 2, 1985
Inventors
John B. Hodgin
John H. Sumner
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.