Does the previous owner still have time to renew his domain after the action ends?
polarcrow,
Yes, and it happened to me twice at Dynadot. They auction their expired domains between day 30-37 after the expiry and at the same time they allow the previous owner to renew his domain for regular registration fee for 40 days after expiry. This is totally rubbish and something very stupid from the folks over Dynadot who are actually smart people.
Godaddy does the same but it never happened to me although I buy a lot of domains at Godaddy. What they do is they auction the domain, you win the auction and you pay. But then you have to wait about a week for the domain to arrive in your account. During that time the previous owner can still recover his domain but they charge more than the regular registration fee.
With domains at namejet and snapnames pre-release auctions, the domain can be pulled while the auction is still running. I haven't hear a domain being pulled after the auction was completed.
With pending delete domains, it is not possible for the previous owner to recover it, and the previous registrar has no control over the domain and has no advantage against other registrars when dropcatching the domain.
Stub,
Are you sure about the 70 days to recover expired domains? I think this doesn't apply to domains that are sold in auction.
It is true there is a 30 day grace period to undo a deletion request. When the automated renewal expires at day 45 a deletion request is assigned for the domain and it can be undone. However this is more complicated then renewing a domain within the 45 days. The registrar would need to contact the registry to undo the deletion request.
Theoretically the domain can be recovered until it enters pending delete, however godaddy doesn't seem to apply that and they stop the recovery at day 42 according this article:
http://community.godaddy.com/help/608
In other words at Godaddy,
between day 0-18 you can renew your domain at regular reg fee
between day 19-42 you can recover your domain for $80 plus reg fee
Other registrars do things differently. However I don't think they can recover your domain after day 45 if it was sold. Verisign simply renews all expired domains for one more year and they expect the payment to arrive within 45 days. If the payment does not arrive, they cancel the renewal and they set a deletion request for the domain that waits on hold for 30 days. However that deletion request can be undone.
On the other hand, if a domain is sold in pre-release auction it will be sold before day 45 while it is still under the control of the registrar. As soon as the domain is sold in auction the registrar will pay the renewal fee to the registry and the expire circle will stop. So there will be no 30 day deletion request on top of 45 days that can be undone. So, yes I think you can recover an expired domain even between day 45 and 75 (or usually between 42 and 72 because registrars don't use the full 45 days) with some registrars other than Godaddy but only if it was not sold in pre-release auction.