Granted Patent
Utility
US 4,391,849 · App. 06/367,366
Metal oxide patterns with planar surface
Inventor:
Peter G. Bischoff
Patented Case
View Patent ↗
Granted: Jul 5, 1983
Filed: Apr 12, 1982
Inventor
Peter G. Bischoff
Assignee (at issue)
Memorex Corporation
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.