I didn't say they
stole it, I said they
copied it. Despite what the content industry would like you to think, the words are not synonymous. Copying is not a crime.
Furthermore, Apple's license wasn't a patent license. It also didn't cover all of the things they copied. Xerox later sued Apple for copying (and, thankfully, lost, as did Apple when they sued Microsoft, because they tried to use copyright law instead of patent law).