Granted Patent
Utility
US 5,444,258 · App. 08/211,676
Ion-optics system for a source of ions to be discharged into a gas
Inventors:
Vladimir G. Grigoryan, Valeriy Ivanovich Minakov, Vladimir A. Obukhov, Petr P. Ogadjanov
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Apr 12, 1994
Inventors
Vladimir G. Grigoryan
Valeriy Ivanovich Minakov
Vladimir A. Obukhov
Petr P. Ogadjanov
Assignee (at issue)
Societe Europenne de Propulsion
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.