Apple’s “iMessage” is now a registered trademark. The company’s newest trademark officially became registered on Nov. 20. It was first submitted for review in September 2011, according to Patently Apple.

Launched at WWDC in June 2011, iMessage is now available on iOS and OS X devices. It allows text and photo communication between devices without a costly data plan.

Meanwhile, the same report confirms that Apple has now submitted their fourth Passbook related trademark application. This time, the filing covers the app’s icon under International Classification 035. This includes a number of industries including advertising, marketing, and other goods and services.

Previous trademarks also covered the Passbook icon, but in different classes, and also the Passbook name.

Source: Patently Apple