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    • Join Date: Apr 2005
    • Posts: 50

    "registered and unregistered"


    Could someone help me to understand the sentence below?

    The trademarks, logos, and service marks displayed on the Site are registered and unregistered Trademarks of the Massachusetts Institute of Technology (MIT), European Research Consortium for Informatics and Mathematics (ERCIM), or Keio University (Keio).

    I understand the "trademarks, logos, and service marks" are registered. However, I do not get why a word "unregistered" comes right after "registered."

    Does it mean "trademarks of MIT, ERCIM, Keio" are not registered?

    Is "registered and unregistered" a kind of idioms? I have seen this a lot in some websites.

    Thank you,

  1. Editor,
    English Teacher
    • Member Info
      • Native Language:
      • British English
      • Home Country:
      • UK
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      • Laos

    • Join Date: Nov 2002
    • Posts: 60,190

    Re: "registered and unregistered"

    I think it just means that some have been rigistered but others haven't, though they don't want people using them without permission evern when unregistered.


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