Granted Patent
Utility
US 5,829,270 · App. 08/848,296
Cryogenics
Inventor:
Vladimir Mikheev
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Apr 29, 1997
Inventor
Vladimir Mikheev
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.