Granted Patent
Utility
US 4,804,630 · App. 07/025,542
Kit and method for detecting lithium ions
Inventor:
Himangshu R. Bhattacharjee
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Mar 13, 1987
Inventor
Himangshu R. Bhattacharjee
Assignee (at issue)
AlliedSignal, 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.