How are reissue patents classified in the MPEP?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. According to MPEP 901.04 , reissue patents are classified as follows: “Reissue patents are given a new patent number and are classified in the same way as are the original patents.” This means that reissue patents: Receive a new patent number distinct from the original patent Are classified using the same system as the original patents Maintain their original classification in terms of utility, design, or plant patents It’s important to note that while reissue patents get new numbers, they retain the classification of their original counterparts, ensuring consistency in patent organization and search processes. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Plant Patents Must Use P.P. Series MPEP 901.04 Required Reissue Patents Require Specific Numbering MPEP 901.04 Reissue Patents Must Use Specific Numbering MPEP 901.04 Required Separate Numbering for Plant Patents MPEP 901.04 Reissue Patents Require Specific Numbering MPEP 901.04 Plant Patents Require Separate Numbering MPEP 901.04 Effective Date Is Original Application MPEP 901.04 Citation By Number Only Refers To This Series MPEP 901.04 Patent for Designs Must Include D Prefix MPEP 901.04 Design Patents Must Use D Prefix MPEP 901.04 Required Other Related FAQs 5 FAQs Collapse What is the distinction between utility and design patents in the MPEP? What is the significance of X-Series patents in the MPEP? Can an abandoned application be used as prior art? What are the exceptions to the 18-month publication rule for patent applications? What is the significance of abandoned applications in patent examination?