IP Library › Granted Patent US 5,109,404
Granted Patent Utility
US 5,109,404 · App. 07/527,979

Telephone call processor with select call routing

Inventors: Ronald A. Katz, Thomas D. Thompson
Patented Case View Patent ↗
Granted: Apr 28, 1992 Filed: May 24, 1990
Inventors
Ronald A. Katz
Thomas D. Thompson
Assignee (at issue)
FIRST DATA RESOURCES, LLC.

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 5,109,404
App. No.
07/527,979
Filed
1990-05-24
Granted
1992-04-28
Kind
A