Granted Patent
Utility
US 4,867,526 · App. 07/115,123
Water resistant communications cable
Inventor:
Candido J. Arroyo
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Oct 30, 1987
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.