Granted Patent
Utility
US 4,425,183 · App. 06/521,509
Metal bevel process for multi-level metal semiconductor applications
Inventors:
George Maheras, Hubert O. Hayworth
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Aug 8, 1983
Inventors
George Maheras
Hubert O. Hayworth
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.