IP Library › Granted Patent US 4,946,237
Granted Patent Utility
US 4,946,237 · App. 07/375,170

Cable having non-metallic armoring layer

Inventors: Candido J. Arroyo, Paul F. Gagen
Patented Case View Patent ↗
Granted: Aug 7, 1990 Filed: Jun 30, 1989
Inventors
Candido J. Arroyo
Paul F. Gagen
Assignee (at issue)
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,946,237
App. No.
07/375,170
Filed
1989-06-30
Granted
1990-08-07
Kind
A