Granted Patent
Utility
US 4,863,819 · App. 07/211,146
Read-only optical data card
Inventors:
Jerome Drexler, Eric W. Bouldin
Patented Case
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Granted: Sep 5, 1989
Filed: Jun 22, 1988
Inventors
Jerome Drexler
Eric W. Bouldin
Assignee (at issue)
Drexler Technology 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.