Once I’ve filed a patent application (e.g., provisional patent application, nonprovisional patent application) on EFS-Web and received an acknowledgment receipt, can I apply the term “Patent Pending” to products for which the patent application has been filed?


After a filed provisional patent application is accorded a filing date, one is permitted to apply the term "Patent Pending" to products for which the patent application has been filed. After a filed nonprovisional patent application is accorded a filing date, one is permitted to apply the term "Patent Pending" to products for which the patent application has been filed as long as the nonprovisional patent application is pending.


USPTO FAQ - Questions and Answers (13AUG2007)