Granted Patent
Utility
US 5,286,686 · App. 07/981,633
Air-sinterable lanthanum chromite and process for its preparation
Inventors:
Stephen Haig, Beili L. Wu, Jean Yamanis
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Nov 25, 1992
Inventors
Stephen Haig
Beili L. Wu
Jean Yamanis
Assignee (at issue)
AlliedSignal, 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.