Granted Patent
Utility
US 6,185,090 · App. 09/146,685
Method for doping sintered tantalum and niobium pellets with nitrogen
Inventor:
Yuri L. Pozdeev-Freeman
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Sep 3, 1998
Inventor
Yuri L. Pozdeev-Freeman
Assignee (at issue)
VISHAY SPRAGUE, 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.