Granted Patent
Utility
US 4,242,097 · App. 06/017,576
Method and apparatus for quantitative analysis of weakly ionized anions or cations
Inventors:
William E. Rich, Edward L. Johnson, Thomas O. Sidebottom
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Mar 5, 1979
Inventors
William E. Rich
Edward L. Johnson
Thomas O. Sidebottom
Assignee (at issue)
Dionex Corporation
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.