Granted Patent
Utility
US 5,111,870 · App. 07/596,062
Top fill casting
Inventor:
Arnold J. Cook
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Oct 11, 1990
Inventor
Arnold J. Cook
Assignee (at issue)
PCast Equipment 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.