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"The USPTO assigns all marks containing design figurative elements a 6-digit numerical code(s) for searching purposes. This manual indexes the categories, divisions, and sections that make up these codes. ... The design search code manual also contains explanatory notes and specific guidelines that provide instructions for specific code sections, cross-reference notes that direct users to other code categories, sections and divisions, and notes describing elements that are included or excluded from a code section"--USPTO Manuals, Guides, Official Gazette home page.
The Trademark Official Gazette (TMOG) is published each Tuesday and contains bibliographic information and a representative drawing for each mark published, along with a list of cancelled and renewed registrations. The TMOG does not contain USPTO Notices. Information about each mark may also be found in the searchable trademark database, Trademark Electronic Search System (TESS).