Granted Patent
Utility
US 5,825,474 · App. 08/549,152
Heated optical platen cover for a fingerprint imaging system
Inventor:
Daniel Frederick Maase
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Oct 27, 1995
Inventor
Daniel Frederick Maase
Assignee (at issue)
Identix Incorporated
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.