Parts, Form, and Content of Application

Filing Date Requirements — 37 CFR 1.53 For filing date: specification, at least one claim, and necessary drawings required.

• Missing oath/declaration or fees: does NOT prevent filing date
• Missing necessary drawings: CAN prevent filing date
• Noncompliant formatting: does NOT affect filing date

Omitted Pages — MPEP 601.01(d) Material in priority application: can restore without new matter problem. Material not originally disclosed: cannot add — constitutes new matter.

Oath/Declaration — MPEP 602 / 37 CFR 1.63 Missing oath/declaration does NOT prevent filing date — USPTO issues notice to correct. Unsworn declaration under 37 CFR 1.68 accepted if required statutory language included. Assignment may satisfy declaration requirements if it includes required statements.

Supplemental Declaration — MPEP 603 Required when: claims amended to include subject matter not substantially embraced in earlier declaration, inventorship changes, or earlier declaration was defective. NOT required for every amendment.

Joint Inventors — 37 CFR 1.45 Need not: contribute equally, work physically together, or contribute to every claim. Only need to contribute to subject matter of at least one claim.

Claims — 37 CFR 1.75 Dependent claims must: refer back to prior claim, include all limitations, add further limitation. Multiple dependent claims: PROPER — according to claim 1 or 2. IMPROPER — according to claims 1 and 2. Multiple dependent claim CANNOT depend on another multiple dependent claim.

Application Arrangement — 37 CFR 1.77 Preferred order: Title, Cross-references, Federal research, Background, Summary, Brief description of drawings, Detailed description, Claims, Abstract. This is preferred arrangement — NOT a patentability requirement.

Incorporation by Reference — 37 CFR 1.57 Essential material: ONLY to US patents and US published applications — NOT foreign patents, articles, or NPL. Omitted material may be added if completely contained in priority application with proper priority claim.

New Matter Cannot add unsupported disclosure, drawings, or claim limitations after filing date.

Preliminary Amendments — 37 CFR 1.125 Filed before examination. Entry not guaranteed if improper, disruptive, or filed too late.

IDS Timing — MPEP 609 / 37 CFR 1.97

• Before first OA: NO fee, NO certification
• After first OA but before final/NOA: fee OR 1.97(e) certification
• After final/NOA: fee AND/OR certification depending on timing
• After issue fee paid: NOT considered at all 1.97(e) certification: information first cited in foreign office communication OR not known earlier despite reasonable diligence.

Examiner Requirements — 37 CFR 1.105 MAY require: factual/technical information, search information, related applications. CANNOT require: attorney opinions, legal conclusions, protected work product.