Granted Patent
Utility
US 5,082,380 · App. 07/544,678
Optical fibre cable
Inventors:
Ralph Sutehall, Andrew Gordon Summers
Patented Case
View Patent ↗
Granted: Jan 21, 1992
Filed: Jun 27, 1990
Inventors
Ralph Sutehall
Andrew Gordon Summers
Assignee (at issue)
Northern Telecom Europe Limited
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.