Granted Patent
Utility
US 4,730,894 · App. 06/845,105
Optical fiber cable having a prefabricated strength system and methods of making
Inventor:
Candido J. Arroyo
Patented Case
View Patent ↗
Granted: Mar 15, 1988
Filed: Mar 27, 1986
Inventor
Candido J. Arroyo
Assignee (at issue)
American Telephone and Telegraph Company, 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.