Granted Patent
Utility
US 5,215,624 · App. 07/807,725
Milling solution and method
Inventors:
LeRoy E. Dastolfo, Jr., Gary P. Tarcy
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Dec 16, 1991
Inventors
LeRoy E. Dastolfo, Jr.
Gary P. Tarcy
Assignee (at issue)
Aluminum Company of America
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.