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    I don't think a disclaimer was necessarily required in this case. "A
    mark or portion of a mark is considered 'unitary' when it creates a
    commercial impression separate and apart from any unregistrable
    component.  ... If the matter that comprises the mark or relevant
    portion of the mark is unitary, no disclaimer of an element, whether
    descriptive, generic, or otherwise, is required." TMEP 1213.05. This
    is a unitary phrase, a slogan.<br>
    <br>
    A missing disclaimer is probably unchallengeable. I don't know off
    the top of my head about disclaimers, but some decisions about
    registration cannot be challenged in a TTAB proceeding because they
    are within the discretion of the PTO - acceptance of specimens is a
    big one.<br>
    <br>
    What you do instead is challenge it on underlying validity grounds.
    For example, if it's a specimen problem, you challenge on the basis
    of non-use. I think your avenue here would be an argument that the
    mark is merely descriptive, but that's only possible in an
    infringement case, not a refusal - if the mark was cited against
    you, the PTO isn't going to decide it's now invalid in a collateral
    attack. If you are in a venue where you can challenge the validity
    of the mark, you'll have to overcome the prima facie evidence that
    the mark is distinctive by virtue of its registration (assuming it's
    not more than five years old, in which case you're sunk). So it will
    be a heavier lift.<br>
    <br>
    Pam<br>
    <br>
    <div class="moz-signature">Pamela S. Chestek<br>
      Chestek Legal<br>
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      <br>
    </div>
    <div class="moz-cite-prefix">On 4/16/2025 8:46 AM, Jessica R.
      Friedman via E-trademarks wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:BL3P223MB02731954E4B73EFB2DDC31B6A5BD2@BL3P223MB0273.NAMP223.PROD.OUTLOOK.COM">
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        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#0A2F41">The
            mark COMPUTER SCIENCE FOR THE REAL WORLD is registered for
            books about computer science in various media without a
            disclaimer of COMPUTER SCIENCE, despite the fact that
            COMPUTER SCIENCE clearly is \u201cmerely descriptive\u201d for books
            about computer science, and, the applicant did not claim
            secondary meaning.  <o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#0A2F41"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#0A2F41">There\u2019s
            no point asking how the PTO let that application proceed
            without the disclaimer in the first place. But would this
            registration actually be enforceable without proof of
            secondary meaning?  I guess I\u2019m asking whether the clear
            error in the registration would be a defense to an
            infringement claim, or even a refusal to register a similar
            mark, even if I\u2019m not asking the question in quite the right
            way.
            <o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#0A2F41"><o:p> </o:p></span></p>
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style="font-size:10.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#0A2F41"><o:p> </o:p></span></p>
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          <div>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">Jessica
                R. Friedman</span><span
                style="font-size:12.0pt;font-family:&quot;Times New
                Roman&quot;,serif;color:black"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">Attorney
                at Law<o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">300
                East 59 Street, Ste. 2406<o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">New
                York, NY 10022</span><span
                style="font-family:&quot;Times New
                Roman&quot;,serif;color:black"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">Phone:
                212-220-0900</span><span style="font-family:&quot;Times
                New Roman&quot;,serif;color:black"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">Cell:
                917-647-1884</span><span style="font-family:&quot;Times
                New Roman&quot;,serif;color:black"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">E-mail:</span><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:blue"> <u><a
                    href="mailto:jrfriedman@litproplaw.com"
                    title="mailto:jrfriedman@litproplaw.com"
                    moz-do-not-send="true"><span style="color:#0563C1">jrfriedman@litproplaw.com</span></a></u></span><span
                style="font-family:&quot;Times New
                Roman&quot;,serif;color:black"><o:p></o:p></span></p>
            <p class="MsoNormal"><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:#003366">URL: </span><u><span
style="font-size:8.0pt;font-family:&quot;Verdana&quot;,sans-serif;color:blue"><a
                    href="http://www.literarypropertylaw.com"
                    title="http://www.literarypropertylaw.com"
                    moz-do-not-send="true"><span style="color:#0563C1">www.literarypropertylaw.com</span></a></span></u><span
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