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DEVICE INDEPENDENT TEXT CAPTIONED TELEPHONE SERVICE

16/559,172 | U.S. Patent Application

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Location ELECTRONIC
Filed Sept. 3, 2019
Examiner STELLA L WOO
Class 379
Art Group 2652
Patent No. 10,972,604
Case Type Utility - 379/052000
Status Patented Case
Parent 14/988,407 Patented
Parent 14/553,291 Patented
Parent 13/790,420 Patented
Parent 12/102,057 Patented
Parent 11/391,141 Patented
Parent 60/695,099 Expired
Last Updated: 3 years ago
Date # Transaction