Granted Patent
Utility
US 4,613,521 · App. 06/509,683
Methods of and apparatus for coating a lightguide fiber
Inventor:
James V. Smith, Jr.
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Jun 30, 1983
Inventor
James V. Smith, Jr.
Assignee (at issue)
AT&T Technologies Incorporated
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.