Granted Patent
Utility
US 6,348,113 · App. 09/199,569
High purity tantalum, products containing the same, and methods of making the same
Inventors:
Christopher Michaluk, Louis Huber, Mark N. Kawchak, James Maguire
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: Nov 25, 1998
Inventors
Christopher Michaluk
Louis Huber
Mark N. Kawchak
James Maguire
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.