Law - Drawing Reference Numerals

Reference numerals are used on the drawings and in the text of the specification to identify the elements (or steps) of the invention. In the disclosure of a complicated invention, it is helpful to provide a listing of reference numerals and associated invention elements (or process steps) to ensure that (1) each reference numeral is used to call out only one invention element or step and (2) each claimed element or step is shown on at least one drawing.

MPEP § 608.01(f) Brief Description of the Drawings

MPEP § 608.02(d) Complete Illustration in Drawings

MPEP § 608.02(e) Examiner Determines Completeness of Drawings

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