IP Library Granted Patent US 4,943,786
Granted Patent Utility
US 4,943,786 · App. 07/240,425

Digital control of phase locked loops

Inventors: Brian Cordwell, Paul M. Hayes
Patented Case View Patent ↗
Granted: Jul 24, 1990 Filed: Sep 1, 1988
Inventors
Brian Cordwell
Paul M. Hayes
Assignee (at issue)
Plessey Overseas Limited

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 4,943,786
App. No.
07/240,425
Filed
1988-09-01
Granted
1990-07-24
Kind
A