IP Library Granted Patent US 4,715,989
Granted Patent Utility
US 4,715,989 · App. 06/821,310

Coating for EMI shielding

Inventors: F. Ryan Sullivan, David M. Aleksa
Patented Case View Patent ↗
Granted: Dec 29, 1987 Filed: Jan 22, 1986
Inventors
F. Ryan Sullivan
David M. Aleksa
Assignee (at issue)
B. F. Goodrich Company

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 4,715,989
App. No.
06/821,310
Filed
1986-01-22
Granted
1987-12-29
Kind
A