NET

3 The angel then threw him into the abyss and locked and sealed it so that he could not deceive the nations until the one thousand years were finished. (After these things he must be released for a brief period of time.)

Darby

3 and cast him into the abyss, and shut [it] and sealed [it] over him, that he should not any more deceive the nations until the thousand years were completed; after these things he must be loosed for a little time.

KJV

3 And cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.