Granted Patent
Utility
US 4,477,273 · App. 06/388,561
Method of and apparatus for straightening and configuring a preform tube from which lightguide fiber is drawn
Inventors:
Brian Lynch, Fred P. Partus
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Jun 15, 1982
Inventors
Brian Lynch
Fred P. Partus
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.