I filed a US patent using EFS-Unregistered on June 1st, 2018 with request not to publish. I filed the related international ePCT on June 4th, 2018. I understood that I would need to rescind the request not to publish on my US filing so I filed form sb0036 "Rescission of Previous Nonpublication Request" on June 16th, 2018 through USPS first class mail. I wanted to use a tracked mail from USPS but the sb0036 form specifically instructed:
I hereby certify that this correspondence is being deposited with the United States Postal Service with sufficient postage as first class mail in an envelope addressed to: Mail Stop PG Pub, Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450, or facsimile transmitted to the U.S. Patent and Trademark Office on the date shown below.
Now the 45 day for rescission and notice is almost up (deadline will be July 18th, 2018), and I haven't heard back from USPTO yet. I used first class mail so I don't have a receipt or any way to show that the USPTO has received my mail.
- What shall I do? Will USPTO mail me a response or just silently process it? I filed as unregistered. Is there any way to check if the request not to file is rescinded?
- Or shall I fax the form again to USPTO with a new date? But use what fax number? The quoted instruction above mentioned fax but didn't give a number.