I understand what you are saying.  But if I have paid for an item, as far as I am concerned, the complete ownership of said item has been transferred to me to use, wear, whatever I want.  And I really don't care about TM's, licenses or whatever - if they have taken my money then they have SOLD the item to me with their brand name.  It now seems to me that some of these businesses want it all their own way.  Yeah, we'll take your money, but we still own it.  What a lot of rot.  Maybe when I have finished with whatever, I should send it back for a full refund because it was still theirs, and they were only loaning it to me anyway, according to their trademark, licensing, etc.

However, one thing we don't know is if OP stated in his listing his item was 'brand new'.  eBay's options are limited to 'New' (brand new item unopened in box - or words to that effect) or 'Used'.  So if OP did list his item as 'New', because it had never been used, and they still had the box, he is only listing according the options available from eBay.  I don't think he's done anything different to a lot of other sellers, who list unused, sitting in the back of a cupboard for yonks, items as new.