Granted Patent
Utility
US 5,241,165 · App. 07/319,457
Erasable optical wallet-size data card
Inventor:
Jerome Drexler
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Mar 3, 1989
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.