Granted Patent
Utility
US 5,207,974 · App. 07/737,197
Partitioned receptacle for distributing molten metal from a spout to form an ingot
Inventor:
David I. Yun
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Jul 29, 1991
Inventor
David I. Yun
Assignee (at issue)
Aluminum Company of America
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.