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DIGITAL AMPLIFICATION

11/709,742 | U.S. Patent Application

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Location ELECTRONIC
Filed Feb. 23, 2007
Examiner SAMUEL C WOOLWINE
Class 435
Art Group 1637
Patent No. 7,824,889
Case Type Utility - 435/091200
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 10/828,295 Abandoned
Parent 09/981,356 Patented
Parent 09/613,826 Patented
Parent 60/146,792 Expired
Child 12/617,368 Patented
Child 90/12,895
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Last Updated: 10 months ago
Date # Transaction