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HIGH NITROGEN AND OTHER INERT GAS ANTI-CORROSION PROTECTION IN WET PIPE FIRE PROTECTION SYSTEM

16/174,561 | U.S. Patent Application

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Location ELECTRONIC
Filed Oct. 30, 2018
Examiner QINGZHANG ZHOU
Class 169
Art Group 3752
Patent No. 10,946,227
Case Type Utility - 169/016000
Status Patented Case
Parent 14/341,398 Patented
Parent 13/48,596 Patented
Parent PCT/US2009/056000 -
Parent 12/210,555 Patented
Parent 61/357,297 Expired
Child 16/789,380 Pending
Last Updated: 4 years ago
Date # Transaction