Granted Patent
Utility
US 6,413,669 · App. 09/542,227
Melt impregnation of mixed metal oxide
Inventors:
Esther S. Takeuchi, Randolph Leising
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Apr 4, 2000
Inventors
Esther S. Takeuchi
Randolph Leising
Assignee (at issue)
Wilson Greatbatch, Ltd.
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.