Granted Patent
Utility
US 5,595,677 · App. 08/452,923
Nb-doped PLZT piezoelectric ceramics
Inventors:
Ratnakar R. Neurgaonkar, John R. Oliver, Jeffrey Nelson
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: May 30, 1995
Inventors
Ratnakar R. Neurgaonkar
John R. Oliver
Jeffrey Nelson
Assignee (at issue)
Rockwell International 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.