SAN FRANCISCO — A patent assertion entity that stiffed its lawyers at McKool Smith won’t get a penny out of Apple Inc.

On the third day of deliberations, a federal jury in San Jose found that Apple did not infringe a patent asserted by Golden Bridge Technology, a nonpracticing entity based in New Jersey. Jurors rejected Golden Bridge’s claims that the iPhone 4, iPhone 4S, iPhone 5 and a second-generation model of the iPad infringed its patent for an aspect of the 3G technology through which cellphones connect with base stations. However, the jury rejected Apple’s bid to invalidate the patent.