If you bought an iPhone 4 (and you live in the US) then I’ve got some good news for you. You’re entitled to $15 of a free bumper case for your handset.

According to CNET, 18 separate lawsuits that were consolidated into one relating to the ‘Antennagate‘ handset signal performance issue have now been settled.

You remember ‘Antennagate,’ right? Soon after the iPhone 4 as released, some users began complaining that holding the handset in a certain way caused antenna performance to drop dramatically, to the point of losing reception completely. Apple issued an open letter to iPhone 4 ownersand followed that up with a press conference where the late Apple CEO Steve Jobs made the claim that this was not an iPhone issue but in fact an industry-wide problem. Apple also made a selection of free cases available to consumers.

But that didn’t prevent the lawsuits.

Each lawsuit claimed that Apple was ”misrepresenting and concealing material information in the marketing, advertising, sale, and servicing of its iPhone 4 - particularly as it relates to the quality of the mobile phone antenna and reception and related software.”

In the next few weeks the iPhone4Settlement.com website will go live, and that will provide iPhone 4 customers with information related to the settlement, as well as information on how to make a claim. Customers who bought an iPhone 4 will also receive an email informing them of the settlement before April 30, 2012. From that period, the claim period will be 120 days.