Granted Patent
Utility
US 4,842,641 · App. 07/183,931
Synthesis of iron-cobalt powders
Inventor:
Kenneth E. Gonsalves
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Apr 20, 1988
Inventor
Kenneth E. Gonsalves
Assignee (at issue)
GAF 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.