How often is the Patent Classification Retrieval System (PCRS) updated?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 4 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. The Patent Classification Retrieval System (PCRS) is regularly updated to ensure the most current classification information is available. According to MPEP 902.03(b) : “ This data is updated bimonthly with new issues, withdrawn patents and reclassifications. “ This bimonthly update schedule ensures that users have access to the latest classification information, including newly issued patents, patents that have been withdrawn, and any reclassifications that have occurred. Related Rules from the Manual of Patent Examining Procedure 4 rules Collapse Classification Orders Affect Existing Definitions MPEP 902.02 Recommended Examiner Definitions Must Be Updated Periodically MPEP 902.02 Recommended Classification Orders Available Online for USPTO Personnel MPEP 902.02 Classification Home Page Must Be Accessible via Toolkit MPEP 902.02 Other Related FAQs 5 FAQs Collapse How can patent examiners access the Classification Home Page? What is the Patent Classification Retrieval System (PCRS)? Can the public access the same patent classification information as patent examiners? What information is available on the USPTO Classification Home Page? What is the Patent Classification Home Page on the USPTO Intranet?