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WATER AND/OR FIRE RESISTANT TUNNEL EXPANSION JOINT SYSTEMS

16/420,861 | U.S. Patent Application

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Location ELECTRONIC
Filed May 23, 2019
Examiner WILLIAM GILBERT, V
Class 405
Art Group 3649
Patent No. 11,180,995
Case Type Utility - 405/153000
Status Patented Case
Parent 14/927,047 Patented
Parent 62/73,617 Expired
Parent 14/229,463 Patented
Parent 61/806,194 Expired
Parent 13/731,327 Patented
Parent 12/635,062 Patented
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Last Updated: 1 year, 6 months ago
Date # Transaction