Talking to the patent office in Washington DC, they state that once a patent has been applied for, you may use the “Patent Applied For” decal or sticker during the term till the patent is granted. Once you have manufactured your product during the time allotted in the term of the patent, you can not re-use “Patent Applied For” on your product. You are not re-applying for a patent to a product that has already been granted a patent number.