IP Library › Granted Patent US 4,907,340
Granted Patent Utility
US 4,907,340 · App. 07/102,987

Electrical device comprising conductive polymers

Inventors: Shou-Mean Fang, Charles H. Camphouse
Patented Case View Patent ↗
Granted: Mar 13, 1990 Filed: Sep 30, 1987
Inventors
Shou-Mean Fang
Charles H. Camphouse
Assignee (at issue)
Raychem 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.

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 4,907,340
App. No.
07/102,987
Filed
1987-09-30
Granted
1990-03-13
Kind
A