During which hours is the Trademark Trial and Appeal Board (TTAB) available for contact?

The Trademark Trial and Appeal Board (TTAB) is available for contact during the hours of 8:30 a.m. to 5 p.m. ET. This timeframe is established to ensure that individuals and businesses seeking assistance or information regarding trademark proceedings have access to TTAB resources during standard working hours. This allows for better communication and the ability to receive timely responses regarding their inquiries.

The other options are not correct because the TTAB does not operate 24 hours a day, nor is it available only on weekdays or during federal holidays. The standard operating hours of 8:30 a.m. to 5 p.m. ET on business days strike a balance that accommodates the needs of the public while allowing TTAB staff to manage their workload effectively.