Granted Patent
Utility
US 5,149,682 · App. 07/155,340
Manufacturing method for superconducting ceramics and products thereof
Inventors:
Nicholas D. Spencer, Wie-Hin Pan, John Allen Rudesill
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Feb 12, 1988
Inventors
Nicholas D. Spencer
Wie-Hin Pan
John Allen Rudesill
Assignee (at issue)
W.R. Grace & Co. Conn.
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.