Granted Patent
Utility
US 5,810,949 · App. 08/473,827
Method for treating an aluminum alloy product to improve formability and surface finish characteristics
Inventors:
Dhruba J. Chakrabarti, Robert W. Westerlund, Bruce A. Halter
Patented Case
View Patent ↗
Granted: Sep 22, 1998
Filed: Jun 7, 1995
Inventors
Dhruba J. Chakrabarti
Robert W. Westerlund
Bruce A. Halter
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.