Granted Patent
Utility
US 6,682,647 · App. 09/854,291
Bismuth-based electrochemical stripping analysis
Inventor:
Joseph Wang
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: May 10, 2001
Inventor
Joseph Wang
Assignee (at issue)
New Mexico State University
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.