[Spinal]

reldridge is right, its only valid in ones own area, its only after its registered federally does it give the person a broader area - but you have to renew it and it costs money, plus you gotta go through an application process etc. so the R with the circle around it has more power than the little TM lol. registered trademarks also tell you who was "first" to use it, non-regsitered TM's don't.