807.18 Mark Drawing Code 
Standard Character Drawings. Standard character drawings are coded in the USPTO’s automated system as mark drawing code 4. Prior to November 2, 2003, typed drawings ( see TMEP §807.03(i)) were coded as mark drawing code 1. Mark drawing code 1 is not available for applications filed on or after November 2, 2003. Applications that were filed before November 2, 2003, may be amended to mark drawing code 1, if appropriate for that drawing. Only mark drawing code 4 should be used for standard character drawings.
Special Form Drawings. Marks comprising only a design are coded as mark drawing code 2; marks comprising words plus a design are coded as mark drawing code 3; and marks comprising stylized letters and/or numerals with no design feature are coded as mark drawing code 5. All marks consisting of words, numerals, and/or diacritical symbols for which no standard character claim ( see TMEP §807.03(a)) has been submitted are coded as mark drawing code 5.
Non-Visual Marks. "Drawings" of non-visual marks ( see TMEP §807.09) are coded as mark drawing code 6.