Granted Patent
Utility
US 6,202,439 · App. 09/343,224
Dilution refrigerator
Inventors:
Vladimir Mikheev, Jeremy Philip White, Timothy Foster, Graham Batey
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jun 30, 1999
Inventors
Vladimir Mikheev
Jeremy Philip White
Timothy Foster
Graham Batey
Assignee (at issue)
Oxford Instruments (UK) Ltd.
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.