How does a patent examiner initiate a Classification Challenge?

Question

Accepted Answer

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. To initiate a Classification Challenge, a patent examiner must follow these steps: Access the Classification Allocation Tool (CAT) at https://cpc.uspto.gov/mcc/secure/index.html#/home Complete the C* challenge form Indicate all challenges to C* designations, including suggested additions Provide an explanation for each challenge As stated in MPEP 909.01(d) : “Every challenge must also be accompanied by an explanation as to why each C* designation should be added or removed.” This process ensures that all classification challenges are well-documented and justified. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Challenge Must Include Reasoning for C* Designations MPEP 909.01(d) Required SPEs and Examiners Must Use CAT Classification Challenge Pages MPEP 909.01(d) Required Rerouting Based on New C* Designations MPEP 909.01(d) Recommended C* Designation May Be Modified Due to Withdrawal of Non-Elected Claims MPEP 909.01(d) Prohibited Challenge Incorrect CPC Designations MPEP 909.01(d) Required Application Must Be Fully Classified on Receipt MPEP 909.01(b) Required Classifications Required for Examiner Assignment MPEP 909.01(b) Permitted Provisional Applications Not Classified or Assigned MPEP 909.01(b) Consult Examiner for Proper Classification MPEP 909.01(d) Recommended Examiner Makes Restriction Requirement Unless Classification Incomplete MPEP 909.01(d) Other Related FAQs 5 FAQs Collapse What is a C* classification challenge? When should a C* classification challenge be submitted for applications with restriction requirements? What happens if a C* classification challenge results in changes? What tool is used to track Classification Challenges? When should a Cl...