Granted Patent
Utility
US 4,549,336 · App. 06/608,539
Method of making MOS read only memory by specified double implantation
Patented Case
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Granted: Oct 29, 1985
Filed: May 9, 1984
Assignee (at issue)
Mostek 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.