IP Library › Granted Patent US 4,445,966
Granted Patent Utility
US 4,445,966 · App. 06/505,624

Method of plasma etching of films containing chromium

Inventors: Robert J. Carlson, Daniel Youngner
Patented Case View Patent ↗
Granted: May 1, 1984 Filed: Jun 20, 1983
Inventors
Robert J. Carlson
Daniel Youngner
Assignee (at issue)
Honeywell 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 4,445,966
App. No.
06/505,624
Filed
1983-06-20
Granted
1984-05-01
Kind
A