Restriction to Permissible Claim Amendments after Final Rejection

Q. We understand that permissible claim amendments are restricted after the issuance of a final rejection.  Please explain about the restriction.

A.  Permissible claim amendments are restricted after the issuance of not only the Final Notice of Rejection, but also after the Decision for Rejection.  Further, this restriction applies to a divisional application filed from a parent application filed on or after April 1, 2007 and containing claims which can be rejected on the same ground as the parent application. 

The permissible amendments are (i) deletion of a claim(s), (ii) amendment for limiting the scope of the invention without increasing the number of claims, (iii) amendments for removing clerical errors, and (iv) amendments for clarifying an unclear expression.  Other claim amendments are not permissible at this stage.  For example, the following amendments are not permissible even when the claims are fully supported by the specification as filed:

   (a) Addition of a new claim directed to a subject matter not described in the claims;

   (b)  Addition of a new subclaim for limiting the scope of an independent claim; and

   (c)  Amendment for changing the category of a claim (such as, changing a product-by-process claim into a process claim).

Addition of a new subclaim is permissible when the amendment is made for clarifying an unclear expression.  For example, when there is a claim reading “A composition containing X, preferably Y”, amending this claim to “A composition containing X” and adding a subclaim reading “Composition according to claim N, wherein said X is Y” will be permissible.


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