What are common objections to patent drawings?

Common objections to patent drawings, as outlined in MPEP 608.02(e), include:

• Failure to show essential structural details (Form Paragraph 6.22.01)
• Different reference numbers referring to the same part (Form Paragraph 6.22.02)
• The same reference number used for different parts (Form Paragraph 6.22.03)
• Reference signs mentioned in the description but not in the drawings (Form Paragraph 6.22.06)
• Reference characters in the drawings not mentioned in the description (Form Paragraph 6.22.07)

These objections are based on non-compliance with various sections of 37 CFR 1.84, which governs standards for drawings in patent applications.

To learn more:

• patent drawings
• drawing objections
• reference characters
• structural details