What are the options for correcting drawings in a patent application?

The Manual of Patent Examining Procedure (MPEP) outlines several options for correcting drawings in a patent application:

• Submitting replacement sheets of drawings
• Filing a petition under 37 CFR 1.182 for correction of the original drawings
• Filing an amendment under 37 CFR 1.121(d) to correct drawing informalities

The MPEP states: “Where replacement sheets of drawings are to be submitted, applicant must include a marked-up copy showing the changes made to the previous drawings.” This ensures that the examiner can easily identify and review the changes made.

To learn more:

• patent drawings
• drawing corrections
• replacement sheets
• marked-up copy