IP Library › Granted Patent US 4,704,231
Granted Patent Utility
US 4,704,231 · App. 06/612,406

Low-density graphite-polymer electrical conductors

Inventor: Deborah D. L. Chung
Patented Case View Patent ↗
Granted: Nov 3, 1987 Filed: May 21, 1984
Inventor
Deborah D. L. Chung

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 4,704,231
App. No.
06/612,406
Filed
1984-05-21
Granted
1987-11-03
Kind
A