Granted Patent
Utility
US 5,421,619 · App. 08/172,878
Laser imaged identification card
Inventor:
Christopher J. Dyball
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Dec 22, 1993
Inventor
Christopher J. Dyball
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.