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FACTORY FABRICATED PRECOMPRESSED WATER AND/OR FIRE RESISTANT TUNNEL EXPANSION JOINT SYSTEMS, AND TRANSITIONS

14/229,463 | U.S. Patent Application

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Location ELECTRONIC
Filed March 28, 2014
Examiner ELIZABETH A QUAST
Class 052
Art Group 3635
Patent No. 9,631,362
Case Type Utility - 052/309300
Status Patented Case
Parent 61/806,194 Expired
Parent 13/731,327 Patented
Parent 13/729,500 Patented
Parent 12/635,062 Patented
Parent 61/121,590 Expired
Parent 12/622,574 Patented
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Last Updated: 6 years ago
Date # Transaction