Granted Patent
Utility
US 6,279,340 · App. 09/578,622
Oil-free liquid chiller
Inventors:
Arthur L. Butterworth, Todd R. Vandeleest, David H. Eber, James C. Tischer
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: May 25, 2000
Inventors
Arthur L. Butterworth
Todd R. Vandeleest
David H. Eber
James C. Tischer
Assignee (at issue)
American Standard International 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.