Granted Patent
Utility
US 4,521,272 · App. 06/449,311
Method for forming and growing a single crystal of a semiconductor compound
Inventor:
William Andrew Gault
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Dec 13, 1982
Inventor
William Andrew Gault
Assignee (at issue)
AT&T Technologies Incorporated
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.