Granted Patent
Utility
US 6,668,136 · App. 09/879,650
Integral heating and cooling unit
Inventors:
Sam W. Henry, Paul Neilson, Randy Jarrett, Steven U. Nestel, Donald M. Cunningham
Patented Case
View Patent ↗
Granted: Dec 23, 2003
Filed: Jun 12, 2001
Inventors
Sam W. Henry
Paul Neilson
Randy Jarrett
Steven U. Nestel
Donald M. Cunningham
Assignee (at issue)
Chromalox, 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.