IP Library › Granted Patent US 6,681,111
Granted Patent Utility
US 6,681,111 · Confirmation No. 5370

ROAMING SERVICE SYSTEM FOR GSM SERVICE SUBSCRIBER IN CDMA SERVICE AREA, AND METHOD FOR REGISTERING LOCATIONS AND TRANSMITTING AND RECEIVING SIGNALS AND SHORT MESSAGES USING THE SYSTEM

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2003-12-04 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-04-16 TRNA Transmittal of New Application 1 View
2001-04-16 SPEC Specification 31 View
2001-04-16 CLM Claims 15 View
2001-04-16 ABST Abstract 1 View
2001-04-16 DRW Drawings-only black and white line drawings 12 View
2001-04-16 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,681,111
App. No.
09/834,952
Filed
2001-04-16
Granted
2004-01-20
Pub. No.
US20020061745A1
Art Unit
2683
PTA
0 days