Bryn Richards, 41, was seeking to overturn his convictions relating to a protest over coronavirus regulations that took place in Norwich at the height of the pandemic in November 2020.
But the High Court ruled his notice of appeal had arrived too late because he had put insufficient postage stamps on his letter to the court.
Norwich saw a number of Covid protests in 2020 including rallies addressed by speaker Piers Corbyn (Image: Newsquest)
Mrs Justice Hill dismissed his action against the Crown Prosecution Service (CPS) and Great Yarmouth........