Granted Patent
Utility
US 4,234,868 · App. 05/949,172
Personal verification device
Inventor:
Peter F. Radice
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Oct 6, 1978
Inventor
Peter F. Radice
Assignee (at issue)
Pennwalt 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.