Granted Patent
Utility
US 4,544,835 · App. 06/673,572
Data system containing a high capacity optical contrast laser recordable wallet-size plastic card
Inventor:
Jerome Drexler
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Nov 21, 1984
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.