undeniable fact about tesla's citizenship from united states patent office nikola tesla of new york n y assignor of onehalf to charles f peok of englewood new jersey electro magnetic motor specification forming part of letters i'patent no dated may application filed november serial no no model to all whom it may concern be it known that i nikola tesla a subject of the emperor of austria from smiljan lika border country of austria hungary now residing at new york in the county and state of new york have invented certain new and useful improvements in electrolriagnetic motors of which the following is a specification reference being had to the drawings accompanying and forming a part of the same