Granted Patent
Utility
US 4,435,955 · App. 06/414,576
Method and apparatus for producing open-end-spun novelty yarns
Inventor:
John H. Sumner
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Sep 3, 1982
Inventor
John H. Sumner
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.