Granted Patent
Utility
US 5,652,061 · App. 08/445,476
Devices comprising films of .beta.-C.sub.3 N.sub.4
Inventors:
Guang-kai David Jeng, James W. Mitchell
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: May 22, 1995
Inventors
Guang-kai David Jeng
James W. Mitchell
Assignee (at issue)
LUCENT TECHNOLOGIES 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.