Granted Patent
Utility
US 6,182,333 · App. 09/029,745
Drafting system spinning roller for producing thread
Inventor:
Werner P. Lauhus
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Mar 2, 1998
Inventor
Werner P. Lauhus
Assignee (at issue)
Day International, 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.