Granted Patent
Utility
US 5,122,408 · App. 07/606,589
Two-sided lead composite and method of making same
Inventors:
Anthony W. Worcester, John T. O'Reilly
Patented Case
View Patent ↗
Granted: Jun 16, 1992
Filed: Oct 31, 1990
Inventors
Anthony W. Worcester
John T. O'Reilly
Assignee (at issue)
The Doe Run 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.