Granted Patent
Utility
US 4,476,712 · App. 06/064,319
Sampling high purity water for trace ion determination
Inventors:
Gerald L. Carlson, Warren E. Snider
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Aug 6, 1979
Inventors
Gerald L. Carlson
Warren E. Snider
Assignee (at issue)
Westinghouse Electric Company LLC
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.