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App. No. 12/901,841 · Confirmation No. 1949

MODEM SIGNALING USING A MULTITONE PREFIX OVER A VOICE CHANNEL OF A WIRELESS COMMUNICATION SYSTEM

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Quick Facts
App. No.
12/901,841
Filed
2010-10-11
Granted
2015-12-29
Pub. No.
US20110249714A1
Examiner
LIU, SIMING
Art Unit
2413
PTA
-48 days