Granted Patent
Utility
US 5,103,458 · App. 07/667,148
Electric arc remelting
Inventor:
Ferhun H. Soykan
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Mar 11, 1991
Inventor
Ferhun H. Soykan
Assignee (at issue)
SPECIAL METALS 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.