Granted Patent
Utility
US 4,545,823 · App. 06/551,439
Grain boundary confinement in silicon-on-insulator films
Inventor:
Clifford Drowley
Patented Case
View Patent ↗
Granted: Oct 8, 1985
Filed: Nov 14, 1983
Inventor
Clifford Drowley
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.