Granted Patent
Utility
US 4,945,217 · App. 07/352,598
Hand-held wand for reading electronic tokens
Inventor:
Michael L. Bolan
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: May 15, 1989
Inventor
Michael L. Bolan
Assignee (at issue)
Dallas Semiconductor 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.