Likelihood of Confusion: The Rule of SAM
When filing for a Federal trademark keep the SAM rule in mind.
The USPTO will refuse registration "if the marks are similar and the goods and or services related." So basically marks do not need to be exact conflicts to be considered for refusal. "Similarity in sound, appearance, or meaning may be sufficient to support a finding of likelihood of confusion," hence the SAM rule.
I'll devote a few more posts this week getting into the nitty gritty of what that means.
*Comprehensive research will be on the lookout for SAM*