Granted Patent
Utility
US 4,499,061 · App. 06/519,796
Strontium ferrite borate
Inventor:
Howard L. Glass
Patented Case
View Patent ↗
Granted: Feb 12, 1985
Filed: Aug 3, 1983
Inventor
Howard L. Glass
Assignee (at issue)
Rockwell International 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.