Granted Patent
Utility
US 4,547,644 · App. 06/583,532
Apparatus for heating a preform from which lightguide fiber is drawn
Inventors:
Wallace Criley Bair, Daryl L. Myers, Jane Rogers
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Feb 24, 1984
Inventors
Wallace Criley Bair
Daryl L. Myers
Jane Rogers
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.