Show US u.s. Patent Office Grants Its 25 Millionth Patent WASHINGTON The United States patent office has hu issued 25 million patents patents almost almost years year after atter granting No lo 1 No 1 was wu signed by George Washington It went to Samuel Hopkins Hopkin of ot Vermont on July 31 1700 foi tOI a method of making pot and pearl ashes ashe generally known now as potash Patent number 25 million was wai signed by John A. A Marzall a Chicagoan Chi Chi- Chicagoan recently named patent commissioner It went to Francis M M. Lambert Pa for a quick quick acting acting mechanism for tor latching latching latch ing doors particularly applicable to watertight doors for tor ships |