Granted Patent
Utility
US 4,456,579 · App. 06/431,950
Low antimony lead-based alloy and method
Inventors:
Purushothama Rao, Wendy J. Nelson
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Sep 30, 1982
Inventors
Purushothama Rao
Wendy J. Nelson
Assignee (at issue)
GNB Batteries Inc.
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.