IP Library Granted Patent US 5,263,191
Granted Patent Utility
US 5,263,191 · App. 07/806,058

Method and circuit for processing and filtering signals

Inventor: Roger W. Dickerson
Patented Case View Patent ↗
Granted: Nov 16, 1993 Filed: Dec 11, 1991
Inventor
Roger W. Dickerson
Assignee (at issue)
Westinghouse Electric Company LLC

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 5,263,191
App. No.
07/806,058
Filed
1991-12-11
Granted
1993-11-16
Kind
A