Granted Patent
Utility
US 6,315,947 · App. 09/576,897
Free-machining aluminum alloy and method of use
Inventor:
Subhasish Sircar
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: May 23, 2000
Inventor
Subhasish Sircar
Assignee (at issue)
Reynolds Metals 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.