Granted Patent
Utility
US 5,884,769 · App. 08/974,613
Particulate material processing tray
Inventor:
George E. Anderson
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Nov 19, 1997
Inventor
George E. Anderson
Assignee (at issue)
CROWN IRON WORKS COMPANY LLC
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.