Secured pre-payment for portable communication unit | Patent Number 09813564
US 09813564 B1Filled DateDec 23, 2016
Priority DateApr 27, 2000
Publication Date-
Expiration DateNov 7, 2021
Inventor/ApplicantsPeter D. Wendt
Daniel S. Karvonen
Daniel S. Karvonen
ExaminesNGUYEN, DAVID Q
Art Unit2643
Technology Center2600
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