Reply To: publisher trademarks Home › Forums › Braille Formats/Textbook › publisher trademarks › Reply To: publisher trademarks August 8, 2012 at 5:39 pm #21597 joannavenneriParticipant See Sectrion 2.3.6d. Only the principal copyright date is listed as shown. Additional copyright dates are not listed on the title page. --Joanna