Granted Patent
Utility
US 5,229,851 · App. 07/862,597
Optical fiber cable with large number of ribbon units containing optical fibers and enclosed in tubes
Inventor:
Mujib Rahman
Patented Case
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Granted: Jul 20, 1993
Filed: Apr 2, 1992
Inventor
Mujib Rahman
Assignee (at issue)
Pirelli Cable Corporation
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.