Welcome to the new version of the Patents Manual. Please note there are changes to the numbering and sequence of the chapters and pages in the manual. You are encouraged to take the time to explore and familiarise yourself with this new structure. Preliminary Classification

Date Published

Also in this Chapter:

The search examiner should give a high priority to the task of preliminarily classifying a case so that the determination of the search strategy by the search strategy team is not delayed. If another section is involved in the classification, it should accord the case a similar priority. A final determination of the classification can be made at a later stage, but must at the latest be made at the time of preparing the international search report.

When acting as an ISA this Office assigns obligatory "invention information" IPC classification symbols in accordance with the rules as set forth in the Guide to the IPC and in the IPC itself (Edition of the IPC in force at the time of the assignment). Non-obligatory IPC classifications (such as the optional IPC indexing codes) are not applied.

Amended Reasons

Amended Reason Date Amended

Published for testing

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