A deadline is a deadline. What you mean is that a deal is signed before the deadline but had not been announced yet. It can be announced hours later.
the rule is as long as you have the league on the phone as well, while you are making a deal, you can push past the deadline
That's not exactly it. Teams have to call into the league to make the deal official. As long as you are on the call before the deadline you can still get approval. It's not like you get to sit there with a league official on the phone and work on a trade for an hour.
<blockquote class="twitter-tweet" lang="en"><p>Meet the New Hawes. Same as the Old Hawes. RT <a href="https://twitter.com/ramonashelburne">@ramonashelburne</a>: Clippers were able to trade Byron Mullens to Philly as well, per sources</p>— Dan Devine (@YourManDevine) <a href="https://twitter.com/YourManDevine/statuses/436595451585105920">February 20, 2014</a></blockquote> <script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
Ramona Shelburne @ramonashelburne 4m Clippers were able to trade Byron Mullens to Philly as well, per sources
Yes, very much like visiting a bank branch minutes before the doors shut at 4pm closing time but you will still be served. Besides the above. What is the time limit to announce a trade after the deadline knowing the trade had been done?
Adrian Wojnarowski @WojYahooNBA 33s Indiana has traded Danny Granger to Philadelphia, league source tells Yahoo Sports.
Woj Bomb <blockquote class="twitter-tweet" lang="en"><p>Indiana has traded Danny Granger to Philadelphia, league source tells Yahoo Sports.</p>— Adrian Wojnarowski (@WojYahooNBA) <a href="https://twitter.com/WojYahooNBA/statuses/436599244926234624">February 20, 2014</a></blockquote> <script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>