Granted Patent
Utility
US 4,589,737 · App. 06/605,736
Doped and undoped single crystal multilayered structures
Inventor:
Sanat K. Sashital
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 1, 1984
Inventor
Sanat K. Sashital
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.