Granted Patent
Utility
US 6,338,433 · App. 09/416,408
Method for laser writing multiple updatable miniature 2-D barcode data bases for electronic commerce
Inventor:
Jerome Drexler
Patented Case
View Patent ↗
Granted: Jan 15, 2002
Filed: Oct 12, 1999
Inventor
Jerome Drexler
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.