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FIRE RESISTANT TUNNEL EXPANSION JOINT SYSTEMS

15/494,809 | U.S. Patent Application

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Location ELECTRONIC
Filed April 24, 2017
Examiner WILLIAM GILBERT, V
Class 052
Art Group 3649
Patent No. 10,519,651
Case Type Utility - 052/309300
Status Patented Case
Parent 14/229,463 Patented
Parent 61/806,194 Expired
Parent 13/731,327 Patented
Parent 12/635,062 Patented
Parent 61/121,590 Expired
Parent 13/729,500 Patented
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Last Updated: 5 years, 9 months ago
Date # Transaction