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LIGHT-BASED TOUCH SCREEN USING ELLIPTICAL AND PARABOLIC REFLECTORS

13/53,224 | U.S. Patent Application

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Location ELECTRONIC
Filed March 22, 2011
Examiner AFROZA Y CHOWDHURY
Class 345
Art Group 2626
Patent No. 8,587,562
Case Type Utility - 345/175000
Status Patented Case
Parent 61/317,255 Expired
Parent 61/317,257 Expired
Parent 61/379,012 Expired
Parent 61/380,600 Expired
Parent 61/410,930 Expired
Parent 12/371,609 Patented
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Last Updated: 2 years, 1 month ago
Date # Transaction