Well that's over. I think Rearz's heart was in the right place, at least. That they were willing to essentially put the Trademark in the public domain shows an absence of malice.
.Rearz are way more expensive in the US. A case of 36 Safaris costs $108 USD, a case of 40 LittlePawz costs $85. Plus mediums and larges for Safaris (from CooshieTooshiez at least) cost extra.