IP Library › Granted Patent US 4,325,489
Granted Patent Utility
US 4,325,489 · App. 06/140,962

Envelope for flat panel display devices

Inventors: John P. Russell, Charles B. Carroll
Patented Case View Patent ↗
Granted: Apr 20, 1982 Filed: Apr 17, 1980
Inventors
John P. Russell
Charles B. Carroll
Assignee (at issue)
RCA Corporation

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 4,325,489
App. No.
06/140,962
Filed
1980-04-17
Granted
1982-04-20
Kind
A