Granted Patent
Utility
US 5,644,901 · App. 08/627,921
Yarn spool apparatus and method
Inventor:
Kiyohiro Tsuzuki
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Apr 3, 1996
Inventor
Kiyohiro Tsuzuki
Assignee (at issue)
TNS Mills 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.