MPEP § 1873 — MPEP § 1873
Current through: 2022-07-01

1873-[Reserved] 
 
 

 
 
 
 
 
 
 
 

 

 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 

 Skip over navigation 
 
 
 
 
 
 
 
 search for patents | search for trademarks 

 
 
 
 
 
 
 
 
 
 
 
 Search 
 
 
 

 
 

 
 
 
 
 
 PATENTS 
 
 Patent Search 

 
 Patent Process 

 
 Patent Classification 

 
 Patent Forms 

 
 Statistics 

 
 Electronic Business Center 

 
 Patent Laws, Regulations, Policies & Procedures 

 
 Resources and Guidance 

 
 Office of Data Management 

 
 Announcements 

 
 Initiatives & Events 

 
 International Protection 

 
 Employee Locator 

 
 Contact Patents 

 

 

 
 TRADEMARKS 
 
 Trademark Search 

 
 Trademarks Process 

 
 News & Notices 

 
 Manuals, Guides, Official Gazette 

 
 Laws & Regulations 

 
 Online Filing 

 
 Contact Trademarks 

 

 

 
 IP LAW & POLICY 
 
 Rulemaking 

 
 IP Policy and Enforcement 

 
 Protecting IP Overseas 

 
 Training and Education 

 
 Training Programs & Conferences 

 
 Office of Governmental Affairs 

 
 Office of Chief Economist 

 
 Boards and Counsel 

 

 

 
 PRODUCTS & SERVICES 
 
 Electronic Data Products 

 
 XML Resources 

 
 XML Resources - Retrospective 

 
 USPTO Contact Center Order Form 

 
 Services 

 
 Locate Libraries 

 
 Training/Events 

 
 Online Services Hub 

 

 

 
 INVENTORS 
 
 Patents for Inventors 

 
 Trademarks for Inventors 

 
 Inventors Assistance 

 
 Education and Information 

 
 Scam Prevention 

 
 Pro Se and Pro Bono 

 
 Current Events 

 
 State Resources 

 
 InventorsEye Newsletter 

 

 

 
 NEWS & NOTICES 
 
 Subscription Center 

 
 Press Releases 

 
 Testimony and Speeches 

 
 Director's Forum 

 
 Systems Status 

 
 Emergency Notices 

 
 USPTO Videos 

 
 Official Gazette 

 
 Federal Register Notices 

 
 Event Calendar 

 

 

 
 FAQs 
 
 Patents FAQs 

 
 Trademarks FAQs 

 
 Assignments 

 
 Security 

 
 Musicians and Artists 

 
 Browser Plugins 

 
 Other Web Resources 

 

 

 
 ABOUT US 
 
 USPTO Leadership 

 
 USPTO Organization 

 
 USPTO Offices 

 
 Careers 

 
 Budget, Performance, and Planning 

 
 Statistics 

 
 Vendor Information 

 
 Public Advisory Committees 

 
 National Medal of Technology and Innovation 

 
 IP in Motion 

 
 Contact Us 

 

 

 
 
 

 

 
 

 
 
 
 
 Home Page 

 
 Patents 

 
 Patent Laws, Regulations, Policies & Procedures 

 
 Manual of Patent Examining Procedure 

 Chapter 1800 

 Section 1873 
 

 
 
 
 
 
 1873 [Reserved]

 [top] 

 

 

 
 

 
 

 

 

 

 
 
 
 1801-Basic Patent Cooperation Treaty (PCT) Principles 

 1802-PCT Definitions 

 1803-Reservations Under the PCT Taken by, and Notifications of Incompatibility Made by, the United States of America 

 1804-[Reserved] 

 1805-Where To File an International Application 

 1806-Applicants and Inventors 

 1807-Agent or Common Representative and General Power of Attorney 

 1808-Change in or Revocation of the Appointment of an Agent or a Common Representative 

 1809-Access to the USPTO patent electronic filing system 

 1810-Filing Date Requirements 

 1811-[Reserved] 

 1812-Elements of the International Application 

 1813 - 1816-[Reserved] 

 1817-PCT Member States 

 1818-[Reserved] 

 1819-Earlier Search 

 1820-Signature of Applicant 

 1821-The Request 

 1822-[Reserved] 

 1823-The Description 
 1823.01-Reference to Deposited Biological Material 

 1823.02-Filing Nucleotide and/or Amino Acid Sequence Listings in International Applications 

 
 

 1824-The Claims 

 1825-The Drawings 

 1826-The Abstract 

 1827-Fees 
 1827.01-Refund of International Application Fees 

 
 

 1828-Priority Claim and Document 
 1828.01-Restoration of the Right of Priority 

 1828.02-Continuation or Continuation-in-Part Indication in the Request 

 
 

 1829-[Reserved] 

 1830-International Application Transmittal Letter 

 1831-[Reserved] 

 1832-License Request for Foreign Filing Under the PCT 

 1833-[Reserved] 

 1834-Correspondence 
 1834.01-Filing of Correspondence by Facsimile 

 1834.02-Irregularities in the Mail or Electronic Communications Service 

 
 

 1835-[Reserved] 

 1836-Rectification of Obvious Mistakes 

 1837 - 1839-[Reserved] 

 1840-The International Searching Authority 
 1840.01-The European Patent Office as an International Searching Authority 

 1840.02-The Korean Intellectual Property Office as an International Searching Authority 

 1840.03-The Australian Patent Office (IP Australia) as an International Searching Authority 

 1840.04-[Reserved] 

 1840.05-The Israel Patent Office (ILPO) as an International Searching Authority 

 1840.06-The Japan Patent Office (JPO) as an International Searching Authority 

 1840.07-The Intellectual Property Office of Singapore (IPOS) as an International Searching Authority 

 
 

 1841-[Reserved] 

 1842-Basic Flow Under the PCT 

 1843-The International Search 
 1843.01-Prior Art for Chapter I Processing 

 1843.02-Certain Subject Matter Need Not Be Searched 

 1843.03-No Search Required if Claims Are Unclear 

 1843.04-Procedure for Claims Not Required To Be Searched and for Claims That Are Unclear 

 1843.05-Time Limit for Establishing the International Search Report and the Written Opinion of the International Searching Authority 

 
 

 1844-The International Search Report 
 1844.01-Preparing the International Search Report (Form PCT/ISA/210) 

 
 

 1845-Written Opinion of the International Searching Authority 
 1845.01-Preparing the Written Opinion of the International Searching Authority (Form PCT/ISA/237) 

 1845.02-Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority,
 or the Declaration (Form PCT/ISA/220) 

 
 

 1846 - 1847-[Reserved] 

 1848-Sequence Listings 

 1849-[Reserved] 

 1850-Unity of Invention Before the International Searching Authority 

 1851-Identification of Patent Documents 

 1852-Taking Into Account Results of Earlier Search(es) 

 1853-Amendment Under PCT Article 19 

 1854 - 1855-[Reserved] 

 1856-Supplementary International Searches 

 1857-International Publication 

 1858-[Reserved] 

 1859-Withdrawal of International Application, Designations, or Priority Claims 

 1860-International Preliminary Examination Procedure 

 1861-[Reserved] 

 1862-Agreement With the International Bureau To Serve as an International Preliminary Examining Authority 

 1863-[Reserved] 

 1864-The Demand and Preparation for Filing of Demand 
 1864.01-Amendments Filed Under PCT Article 34 

 1864.02-Applicant’s Right To File a Demand 

 1864.03-States Which May Be Elected 

 1864.04-Agent’s Right To Act 

 
 

 1865-Filing of Demand 

 1866-[Reserved] 

 1867-Preliminary Examination Fees 

 1868-Correction of Defects in the Demand 

 1869-Notification to International Bureau of Demand 

 1870-Priority Document and Translation Thereof 

 1871-Processing Amendments Filed Under Article 19 and Article 34 Prior to or at the Start of International Preliminary Examination 

 1872-Availability of the International Application File for International Preliminary Examination by the Examining Corps 

 1873-[Reserved] 

 1874-Determination if International Preliminary Examination Is Required and Possible 

 1875-Unity of Invention Before the International Preliminary Examining Authority 
 1875.01-Preparation of Invitation Concerning Unity 

 1875.02-Reply to Invitation Concerning Lack of Unity of Invention 

 
 

 1876-Notation of Errors and Informalities by the Examiner 
 1876.01-Request for Rectification and Notification of Action Thereon 

 
 

 1877-Nucleotide and/or Amino Acid Sequence Listings During the International Preliminary Examination 

 1878-Preparation of the Written Opinion of the International Preliminary Examining Authority 
 1878.01-Includes Subsections Regarding Prior Art, Novelty, Inventive Step, and Industrial Applicability for Purposes of the Written
 Opinion and the International Preliminary Examination Report 
 1878.01(a)-Prior Art for Purposes of the Written Opinion and the International Preliminary Examination Report 
 1878.01(a)(1)-Novelty for Purposes of the Written Opinion and the International Preliminary Examination Report 

 1878.01(a)(2)-Inventive Step for Purposes of the Written Opinion and the International Preliminary Examination Report 

 1878.01(a)(3)-Industrial Applicability for Purposes of the Written Opinion and the International Preliminary Examination Report 

 
 

 
 

 1878.02-Reply to the Written Opinion of the ISA or IPEA 

 
 

 1879-Preparation of the International Preliminary Examination Report 
 1879.01-Time Limit for Preparing Report 

 1879.02-Transmittal of the International Preliminary Examination Report and Related Documents 

 1879.03-Translations 

 1879.04-Confidential Nature of the Report 

 
 

 1880-Withdrawal of Demand or Election 

 1881-Receipt of Notice of Election and Preliminary Examination Report by the United States Patent and Trademark Office 

 1882 - 1892-[Reserved] 

 1893-National Stage (U.S. National Application Filed Under 35 U.S.C. 371) 
 1893.01-Commencement and Entry 
 1893.01(a)-Entry via the U.S. Designated or Elected Office 
 1893.01(a)(1)-Submissions Required by 30 Months from the Priority Date 

 1893.01(a)(2)-Article 19 Amendment (Filed With the International Bureau) 

 1893.01(a)(3)-Article 34 Amendments (Filed with the International Preliminary Examining Authority) 

 1893.01(a)(4)-Claim Amendment (Filed With the U.S. Designated or Elected Office) 

 
 

 1893.01(b)-Applicant for a U.S. National Stage Application 

 1893.01(c)-Fees 

 1893.01(d)-Translation 

 1893.01(e)-Inventor’s Oath or Declaration 

 
 

 1893.02-Abandonment 

 1893.03-Prosecution of U.S. National Stage Applications Before the Examiner 
 1893.03(a)-How To Identify That an Application Is a U.S. National Stage Application 

 1893.03(b)-The Filing Date of a U.S. National Stage Application 

 1893.03(c)-The Priority Date, Priority Claim, and Priority Papers for a U.S. National Stage Application 

 1893.03(d)-Unity of Invention 

 1893.03(e)-Documents Received from the International Bureau and Placed in a U.S. National Stage Application File 
 1893.03(e)(1)-Title of the Invention 

 
 

 1893.03(f)-Drawings and PCT Rule 11 

 1893.03(g)-Information Disclosure Statement in a National Stage Application 

 
 

 
 

 1894-[Reserved] 

 1895-A Continuation, Divisional, or Continuation- in- Part Application of a PCT Application Designating the United States 
 1895.01-Handling of and Considerations in the Handling of Continuations, Divisions, and Continuations-In-Part of PCT Applications 

 
 

 1896-The Differences Between a National Application Filed Under 35 U.S.C. 111(a) and a National Stage Application Submitted Under
 35 U.S.C. 371 

 

 

 
 

 
 
 

 
 

 

 
 
 Accessibility 

 Privacy Policy 

 Terms of Use 

 Security 

 Emergencies/Security Alerts 

 Information Quality Guidelines 

 
 

 
 
 Federal Activities Inventory Reform (FAIR) Act 

 Notification and Federal Employee Antidiscrimination and Retaliation (NoFEAR) Act 

 Budget & Performance 

 Freedom of Information Act (FOIA) 

 
 

 
 
 Department of Commerce NoFEAR Act Report 

 Regulations.gov 

 STOP!Fakes.gov 

 Department of Commerce 

 USA.gov 

 
 

 
 
 Strategy Targeting Organized Piracy (STOP!) 

 Careers 

 Site Index 

 Contact Us 

 Submit Feedback 

 
 

 
 This page is owned by Patents.

 Last Modified: 
 
 03/09/2026 20:49:29