IP Library › Granted Patent US 4,251,696
Granted Patent Utility
US 4,251,696 · App. 06/068,777

Compact telescoping telephone set

Inventors: William G. MacKenzie, James T. Asaki
Patented Case View Patent ↗
Granted: Feb 17, 1981 Filed: Aug 22, 1979
Inventors
William G. MacKenzie
James T. Asaki
Assignee (at issue)
International Telephone and Telegraph 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 4,251,696
App. No.
06/068,777
Filed
1979-08-22
Granted
1981-02-17
Kind
A