Granted Patent
Utility
US 4,564,401 · App. 06/537,135
Method for producing iron-silicon alloy articles
Inventors:
George A. Strichman, Edward J. Dulis, Kalatur S. V. L. Narasimhan, Thomas Lizzi
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Sep 29, 1983
Inventors
George A. Strichman
Edward J. Dulis
Kalatur S. V. L. Narasimhan
Thomas Lizzi
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.