human: I received a filing receipt in a Continued Prosecution Application (CPA), but the filing receipt has nothing specific to the CPA, except an indication of a projected publication date. Why doesn't the filing receipt indicate that it is for a CPA rather tha
assistant: The Office began to mail filing receipts for CPAs beginning in February of 2001. The filing receipts that were first mailed did not explain that they were for the CPA and created considerable confusion. The Office has revised the receipt so that for CPAs, the filing receipt now states "Receipt is acknowledged for a CPA in this nonprovisional Patent Application" and also has a field for the date the CPA was filed between the field for the date the foreign filing license was granted and the Projected Publication Date. Because the application is identified by the application number and filing date accorded when the application was originally filed, the application number and filing date in the header will continue to indicate a filing date earlier than the filing date of the CPA.