Granted Patent
Utility
US 6,167,947 · App. 09/215,531
High performance gas cooling system and method
Inventors:
Karl E. Hokanson, Douglas M. Carlson, William F. Berg
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Dec 18, 1998
Inventors
Karl E. Hokanson
Douglas M. Carlson
William F. Berg
Assignee (at issue)
Silicon Graphics, 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.