Granted Patent
Utility
US 6,446,446 · App. 09/947,465
Efficient cooling system and method
Inventor:
William W. Cowans
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Sep 7, 2001
Inventor
William W. Cowans
Assignee (at issue)
Advanced Thermal Sciences 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.