Granted Patent
Utility
US 4,806,155 · App. 07/073,727
Method for producing dysprosium-iron-boron alloy powder
Inventors:
Floyd E. Camp, Stanley A. Wooden
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Jul 15, 1987
Inventors
Floyd E. Camp
Stanley A. Wooden
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.