Preliminary trademark search: Another name for a preliminary trademark search is an “exact match” or “knockout” search. This kind of search finds names that are exact matches as well as names that could be one or more letters different from the name you want for your trademark.
Comprehensive Trademark Search: Several public and private databases containing corporate names, domain names, state trademarks, news announcements, business publications, and other information are examined in a comprehensive trademark search. This kind of search finds trademarks that might not be the same, but it might hinder your registration attempts for other reasons.
If there are any other registered marks that are “confusingly similar,” indicating they are likely to cause confusion in the marketplace but not exactly the same, a Comprehensive Search can reveal this information to you. Your application will be rejected if it contains “confusingly similar” trademarks.
Even if someone hasn’t submitted an official application for trademark registration, a Comprehensive Search can still reveal whether they are the owner of trademark rights in a name that is similar to yours. One nation that is “first to use” is the United States. Even if they did not register the name with the federal government, the rights of the person who began using the trademark before you will nullify your rights to any “confusingly similar” name.
Only a Comprehensive Trademark clearance Search can reveal these unregistered marks. Unregistered trademarks put new applicants at significant silent risk. The owner of the unregistered trademark may file a petition to have your registration cancelled even after you have successfully registered your desired trademark. They just need to demonstrate that they sold goods under the name before you in order to succeed.
In the worst situation, you can even find yourself liable for infringement damages equal to three times your earnings from using the trademark while being aware of the other brand owner.
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