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FASTER STATE TRANSITIONING FOR CONTINUOUS ADJUSTABLE 3DEEPS FILTER SPECTACLES USING MULTI-LAYERED VARIABLE TINT MATERIALS

14/451,048 | U.S. Patent Application

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Location ELECTRONIC
Filed Aug. 4, 2014
Examiner HUNG XUAN DANG
Class 348
Art Group 2872
Patent No. 9,167,235
Case Type Utility - 348/597000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 14/155,505 Patented
Parent 13/746,393 Patented
Parent 12/938,495 Abandoned
Parent 12/555,545 Patented
Parent 12/274,752 Patented
Parent 11/928,152 Patented
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Last Updated: 1 year, 2 months ago
Date # Transaction