Granted Patent
Utility
US 4,469,554 · App. 06/482,213
Etch procedure for optical fibers
Inventor:
Dennis R. Turner
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Apr 5, 1983
Inventor
Dennis R. Turner
Assignee (at issue)
AT&T Bell Laboratories
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.