Granted Patent
Utility
US 5,448,672 · App. 07/800,671
Optical fibers with matte finishes
Inventors:
Greg E. Blonder, Bertrand H. Johnson
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Nov 27, 1991
Inventors
Greg E. Blonder
Bertrand H. Johnson
Assignee (at issue)
AT&T CORP.
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.