A Notice of Publication is a written statement from the USPTO notifying you that your mark will be published in the Trademark Official Gazette. If the examining attorney assigned to your application raises no objections to registration, or if you overcome all objections, the examining attorney will approve your mark for publication. The notice of publication provides the date of publication.
Any party who believes it may be damaged by registration of the mark has thirty days from the publication date to file either an opposition to registration or a request to extend the time to oppose.
If no opposition is filed or if the opposition is unsuccessful, the application enters the next stage of the registration process. A Certificate of Registration will issue for applications based on use or on a foreign registration under §44, or a Notice of Allowance will issue for intent-to-use applications.