Re: SM, TM, (R) Questions

David Lowe writes:
> I just read Frank Foster's *Patents, Trademarks, and Copyrights*.
> Although it was interesting, it bypassed what I wanted to know: What is
> the difference between a service mark and a trademark, and when should
> you use "SM" instead of "TM"? I also got the impression that you use
> "(R)" instead of "TM" once the trademark is registered. Is that true,
> and if so does that also apply to service marks?

Service mark --> used on services; use SM when not federally registered

Trademark --> used on goods; use TM when not fed. registered.

(R) --> use when the mark is federally registered.

I believe the same R in a circle is used for both trade- and service marks. Anybody else know for sure?

SM and TM have no particular legal significance, other than that they inform anyone who wants to know that the owner intends to assert trademark rights.

        --Trotter Hardy

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