Hi all...mild dilemma. My kids love fluffernutters (peanut butter and marshamallow fluff sandwiches...just in case you didn't know). Anyhow, being a big fan of fluffernutters myself, I developed a "fluffernutter" cheesecake. I don't want to call it peanut butter and marshmallow cheesecake because that just doesn't evoke the same emotion as fluffernutter would, but right on the back of the jar, below the word "fluffernutter" is © 1961 Durkee-Mower, Inc. Any legal experts out there? It's not a registered trademark. It's gettin' kinda old. Can I use it? I don't actually use marshmallow fluff in the cheesecake, so does that make a difference? And if not, what would I call my cheesecake?