Granted Patent
Utility
US 5,954,856 · App. 08/638,922
Method of making tantalum metal powder with controlled size distribution and products made therefrom
Inventors:
Viren M. Pathare, Bhamidipaty K. D. P. Rao, James A. Fife, Hongju Chang, Roger W. Steele, Lee M. Ruch
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Apr 25, 1996
Inventors
Viren M. Pathare
Bhamidipaty K. D. P. Rao
James A. Fife
Hongju Chang
Roger W. Steele
Lee M. Ruch
Assignee (at issue)
Cabot Corporation
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.