Well, if by 'restored it' you mean that you restored to latest firmware, then that would have required you to turn off Find My iPad under Settings. Having done that, you have effectively signed out of iCloud for that device, confirmed by the fact that it no longer shows up in your list of devices at iCloud.com or under iCloud in Settings on your phone. So, unless you restored from a backup after the firmware restore or explicitly signed that iPad into your iCloud account (either of which would have re-associated it with your iCloud account / Apple ID), you're good to go: the device is not iCloud locked to your account. I don't know your whole situation; it might still be locked to another family member's account or something like that, and perhaps you would not be able to know that definitively.
Apple used to have a web page where you could check the lock status of a used device, but they took it down. You might be able use the procedure outlined on this web page if your iPad is a cellular model:
http://appleinsider.com/articles/17/03/08/how-to-check-an-iphones-activation-lock-status-online