IP Library Granted Patent US 4,750,166
Granted Patent Utility
US 4,750,166 · App. 06/879,055

Conference circuit

Inventors: Stephen M. Illman, Martin Sharpe
Patented Case View Patent ↗
Granted: Jun 7, 1988 Filed: Jun 26, 1986
Inventors
Stephen M. Illman
Martin Sharpe
Assignee (at issue)
STC PLC

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 4,750,166
App. No.
06/879,055
Filed
1986-06-26
Granted
1988-06-07
Kind
A