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Reexamination of Patent No. 6,398,556, INEXPENSIVE COMPUTER-AIDED LEARNING METHODS AND APPARATUS FOR LEARNERS

90/6,915 | U.S. Patent Application

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Location ELECTRONIC
Filed Aug. 25, 2003
Examiner KATHLEEN MICHELE MOSSER
Class 434
Art Group 3713
Case Type Re-Examination - 434/219000
Status Reexamination Certificate Issued
Original Case 09/290,770 Patented
Parent 09/110,569 Patented
Parent 09/273,392 Patented
Last Updated: 9 months ago
Date # Transaction