Granted Patent
Utility
US 4,249,987 · App. 05/679,270
Method of growing large Pb.sub.1-x -Sn.sub.x -Te single crystals where 0<X<1
Inventor:
Hiroshi Kimura
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Apr 22, 1976
Inventor
Hiroshi Kimura
Assignee (at issue)
Hughes Aircraft Company
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.