IP Library › Granted Patent US 4,296,435
Granted Patent Utility
US 4,296,435 · App. 06/179,142

Luminance signal processing circuit

Inventors: Alain H. d'Hautecourt, Wayne E. Bretl, Ronald Lee
Patented Case View Patent ↗
Granted: Oct 20, 1981 Filed: Aug 18, 1980
Inventors
Alain H. d'Hautecourt
Wayne E. Bretl
Ronald Lee
Assignee (at issue)
Zenith Radio Corporation

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 4,296,435
App. No.
06/179,142
Filed
1980-08-18
Granted
1981-10-20
Kind
A