Granted Patent
Utility
US 6,405,560 · App. 09/886,098
Apparatus for analysis of impurities in liquid carbon dioxide
Inventors:
Charles W. Bowers, Wilfried Krone-Schmidt
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Jun 22, 2001
Inventors
Charles W. Bowers
Wilfried Krone-Schmidt
Assignee (at issue)
Eco-Snow Systems, 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.