Granted Patent
Utility
US 4,758,316 · App. 07/040,133
Aluminum-lithium scrap recovery
Inventors:
Donald L. Stewart, Jr., Jan H. L. VanLinden
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Apr 20, 1987
Inventors
Donald L. Stewart, Jr.
Jan H. L. VanLinden
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.