IP Library Granted Patent US 4,852,160
Granted Patent Utility
US 4,852,160 · App. 07/021,385

Channel unit interface circuit

Inventors: Frederick J. Kiko, George Kummer
Patented Case View Patent ↗
Granted: Jul 25, 1989 Filed: Mar 3, 1987
Inventors
Frederick J. Kiko
George Kummer

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 4,852,160
App. No.
07/021,385
Filed
1987-03-03
Granted
1989-07-25
Kind
A