Pressman, David Patent it yourself : your step-by-step guide to filing at the U.S. Patent Office your step-by-step guide to filing at the U.S. Patent Office David Pressman. - 15th ed. - Berkeley, Calif. : Nolo, 2011. - 602 p. : ill., forms ; 28 cm. Includes index. ISBN: 978-1-4133-1382-6 (pbk.) 1-4133-1382-5 (pbk.) Subjects--Topical Terms: Patent practice--United States. Dewey Class. No.: 346.730486