You know why most Apple cases have a cutout for the Apple logo? It's because it is copyrighted and only Apple can legally use it so case manufactures can't use it. Apple didn't sue Samsung because it patented "block shape phones". The shape of a phone isn't patentable, patents cover innovations that are non-obvious like "swipe to unlock". You can however copyright or trademark a design. If you look at the early Galaxy phones they look similar enough to the trademarked design of the iPhone 3G.

Oops I forgot about the design patent which is still current but is probably about to got away along with software patents.

Images can absolutely be copyrighted and trademarked so Philip Morris is well within their right to sue. What I object to is this idea that we must get rid of every historical reference to cigarettes. If you watch footage of racing from the era they had tobacco advertising it's all blurred out. I want smoking banned but ruining something that documents the past really doesn't sit well with me.