Granted Patent
Utility
US 4,449,566 · App. 06/028,134
Foundry sand reclamation
Inventors:
Anthony J. Filipovitch, Julius M. Bleuenstein
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Apr 9, 1979
Inventors
Anthony J. Filipovitch
Julius M. Bleuenstein
Assignee (at issue)
Ford Motor 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.