IP Library › Granted Patent US 4,757,529
Granted Patent Utility
US 4,757,529 · App. 06/834,895

Call distribution arrangement

Inventors: Martin Joel Glapa, Dorothy E. Harris, Anthony Lenard, Brian Paul McMahon
Patented Case View Patent ↗
Granted: Jul 12, 1988 Filed: Feb 28, 1986
Inventors
Martin Joel Glapa
Dorothy E. Harris
Anthony Lenard
Brian Paul McMahon
Assignee (at issue)
American Telephone and Telegraph Company, AT&T Bell Laboratories

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 4,757,529
App. No.
06/834,895
Filed
1986-02-28
Granted
1988-07-12
Kind
A