Secured pre-payment for portable communication unit | Patent Number 10057432
US 10057432 B1Filled DateNov 6, 2017
Priority DateApr 27, 2000
Publication Date-
Expiration DateAug 21, 2022
Inventor/ApplicantsPeter D. Wendt
Daniel S. Karvonen
Daniel S. Karvonen
ExaminesNGUYEN, DAVID Q
Art Unit2643
Technology Center2600
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