Granted Patent
Utility
US 6,786,983 · App. 10/100,054
Casting process and product
Inventors:
Richard Szymanowski, Rathindra DasGupta
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Mar 19, 2002
Inventors
Richard Szymanowski
Rathindra DasGupta
Assignee (at issue)
SPX 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.