Posted Dec 4, 2003 19:22 UTC (Thu) by Ross (subscriber, #4065)
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The combination of sections 4 and 6 of the GPL seem to cover this. They don't have any time limits and they make it clear that the grant of rights is renewed everytime a work is distributed for the third party and that the rights are granted only as defined in the license.
Under what conditions can someone normally back out of a contract?
This would seem especially difficult if the other party had acted on the grant of permissions believing them to have been granted by the license and believing they had met all obligations of the agreement.