Granted Patent
Utility
US 5,634,236 · App. 08/498,314
Non-contact fiber cleaning and tensioning device
Inventor:
Ralph J. Darsey
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Jul 5, 1995
Inventor
Ralph J. Darsey
Assignee (at issue)
LUCENT TECHNOLOGIES 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.