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CONTENTGUARD HOLDINGS, INC.

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MARK J. STEFIK PETER L. T. PIROLLI

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SYSTEM FOR CONTROLLING THE DISTRIBUTION AND USE OF DIGITAL WORKS USING DIGITAL TICKETS

08/967,084 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)

Filed Nov. 10, 1997

Examiner FRANTZY POINVIL

Class 705

Art Group 2164

Patent No. 6,236,971

Case Type Utility - 705/001000

Status Patented Case

Parent 08/344,760 Abandoned

Child 09/778,001 Patented

Child 09/777,966 Patented

Child 09/778,006 Patented

Child 09/777,845 Patented

Child 10/15,950 Patented

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Last Updated: 2 years, 4 months ago

Date	#	Transaction
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SYSTEM FOR CONTROLLING THE DISTRIBUTION AND USE OF DIGITAL WORKS USING DIGITAL TICKETS

08/967,084 | U.S. Patent Application

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