Granted Patent
Utility
US 4,641,768 · App. 06/719,089
Teeming apparatus and method
Inventor:
Paul Hill
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Apr 2, 1985
Inventor
Paul Hill
Assignee (at issue)
USS Engineers and Consultants, Inc.
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.