United States Patent and Trademark Office

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Patent EBC Support

About the Patent EBC Customer Support Center                                                    

                                                                                                                                   

Weekday Operation: 
Monday – Friday: 6 AM - Midnight (Eastern Time) 

Telephone:    1-866-217-9197 (toll-free)
                            571-272-4100 (local)

E-mail:            ebc@uspto.gov

Fax:                    571-273-0177

Postal:           Mail Stop EBC,
                       Commissioner for Patents,
                        PO Box 1450,
                       Alexandria, VA 22313-1450.

 

 

 

 

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