Where an application is ready for issue except for a slight defect in the drawing not involving change in structure, the examiner will prepare a letter to the applicant indicating the change to be made and may include a marked-up copy of the drawing showing the addition or alteration to be made. The marked-up copy of the drawing should be attached to the letter to the applicant made of record in the application file.

As a guide to the examiner, the following corrections are illustrative of those that may be suggested without requiring annotated sheets from the applicant:

1. (A) Adding two or three reference characters or exponents.
2. (B) Changing one or two numerals or figure ordinals.
3. (C) Removing superfluous matter.
4. (D) Adding or reversing directional arrows.
5. (E) Changing Roman Numerals to Arabic Numerals to agree with specification.
6. (F) Adding section lines or brackets, where easily executed.
7. (G) Changing lead lines.
8. (H) Correcting misspelled legends.