IP Library Granted Patent US 4,588,439
Granted Patent Utility
US 4,588,439 · App. 06/736,017

Oxygen containing permanent magnet alloy

Inventors: Kalathur S. Narasimhan, Carol J. Willman, Edward J. Dulis
Patented Case View Patent ↗
Granted: May 13, 1986 Filed: May 20, 1985
Inventors
Kalathur S. Narasimhan
Carol J. Willman
Edward J. Dulis
Assignee (at issue)
Crucible Materials 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 4,588,439
App. No.
06/736,017
Filed
1985-05-20
Granted
1986-05-13
Kind
A