Granted Patent
Utility
US 4,753,901 · App. 06/798,511
Two mask technique for planarized trench oxide isolation of integrated devices
Inventors:
Daniel L. Ellsworth, Scott H. Cravens, Maurice M. Moll
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Nov 15, 1985
Inventors
Daniel L. Ellsworth
Scott H. Cravens
Maurice M. Moll
Assignee (at issue)
NCR 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.