Granted Patent
Utility
US 6,772,821 · App. 10/208,424
System for manufacturing die castings
Inventors:
Arnie Fulton, Yan Zhu, Michael Bomar
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Jul 30, 2002
Inventors
Arnie Fulton
Yan Zhu
Michael Bomar
Assignee (at issue)
L&P Property Management Company
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.