Granted Patent
Utility
US 4,784,921 · App. 07/066,953
Aluminum alloy automotive material
Inventors:
M. Elise Hyland, Warren H. Hunt, Jr.
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Jun 29, 1987
Inventors
M. Elise Hyland
Warren H. Hunt, Jr.
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.