IP Library › Granted Patent US 4,839,650
Granted Patent Utility
US 4,839,650 · App. 07/204,026

Analog-to-digital conversion

Inventors: John A. Geen, Brian Johnson
Patented Case View Patent ↗
Granted: Jun 13, 1989 Filed: Jun 8, 1988
Inventors
John A. Geen
Brian Johnson
Assignee (at issue)
British Aerospace Public Limited Co.

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 4,839,650
App. No.
07/204,026
Filed
1988-06-08
Granted
1989-06-13
Kind
A