Granted Patent
Utility
US 4,523,851 · App. 06/407,204
Precision IC alignment keys and method
Inventors:
George Maheras, Hubert O. Hayworth
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Aug 11, 1982
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.