Granted Patent
Utility
US 6,010,676 · App. 08/928,369
Method for making a highly pure tantalum compound
Inventors:
Raj Pal Singh, Michael J. Miller
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Sep 12, 1997
Inventors
Raj Pal Singh
Michael J. Miller
Assignee (at issue)
OSRAM SYLVANIA 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.