Granted Patent
Utility
US 6,105,390 · App. 09/212,490
Apparatus and process for the refrigeration, liquefaction and separation of gases with varying levels of purity
Inventors:
Dennis N. Bingham, Bruce M. Wilding, Michael G. McKellar
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Dec 16, 1998
Inventors
Dennis N. Bingham
Bruce M. Wilding
Michael G. McKellar
Assignee (at issue)
Bechtel BWXT Idaho, LLC
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.