Potomac Piranhas™ Pitch Calendar When: January 30, 2015 – January 31, 2015 all-day 2015-01-30T00:00:00-05:00 2015-02-01T00:00:00-05:00 Where: US Patent and Trademark Office 600 Dulany Street Alexandria, VA 22314 USA Contact: Potomac Piranhas™ Event website