<Table> United States Patent and Trademark Office <Tr> <Td_colspan="2"> Seal of the U.S. Patent and Trademark Office </Td> </Tr> <Tr> <Td_colspan="2"> United States Patent and Trademark Office - headquarters in Alexandria </Td> </Tr> <Tr> <Th_colspan="2"> Agency overview </Th> </Tr> <Tr> <Th> Formed </Th> <Td> January 2, 1975; 43 years ago (1975 - 01 - 02) Washington, D.C., U.S. </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Alexandria, Virginia, U.S. 38 ° 48 ′ 05" N 77 ° 03 ′ 50" W ﻿ / ﻿ 38.801499 ° N 77.063835 ° W ﻿ / 38.801499; - 77.063835 Coordinates: 38 ° 48 ′ 05" N 77 ° 03 ′ 50" W ﻿ / ﻿ 38.801499 ° N 77.063835 ° W ﻿ / 38.801499; - 77.063835 </Td> </Tr> <Tr> <Th> Employees </Th> <Td> 9,716 employees (in 2009) </Td> </Tr> <Tr> <Th> Agency executives </Th> <Td> <Ul> <Li> Andrei Iancu, Director </Li> <Li> Anthony P. Scardino, Acting Deputy Director </Li> <Li> Brendan McCommas, Acting Chief of Staff </Li> </Ul> </Td> </Tr> <Tr> <Th> Parent agency </Th> <Td> U.S. Department of Commerce </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.uspto.gov </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Seal of the U.S. Patent and Trademark Office </Td> </Tr>

When was the united states patent and trademark office established