So based on that information the FGRV member said it doesn't look like anyone 'owns' the trademark at that point.
Tom Young, owner of TrilliumRV states in this topic: Trillium Owners near San Francisco
"New Trillium Company: Formed by myself to produce the trailer under the TM Brand name "Trillium"."
Where I would imagine TM Brand name stands for Trademark Brand Name.
I think I've said this before, but I would be comfortable making a decal or sign for MYSELF, but I certainly wouldn't do it and sell the product. That would be hard to defend in court.