IP Library › Granted Patent US 4,404,499
Granted Patent Utility
US 4,404,499 · App. 06/248,919

Circuit for minimizing edge hooking in television camera pickup tubes

Inventor: John O. Ryan
Patented Case View Patent ↗
Granted: Sep 13, 1983 Filed: Mar 30, 1981
Inventor
John O. Ryan
Assignee (at issue)
Ampex 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 4,404,499
App. No.
06/248,919
Filed
1981-03-30
Granted
1983-09-13
Kind
A