United States Patent (10) Patent No.: US 9,508,327 B2 Jackson (45) Date of Patent: Nov
USOO9508327B2 (12) United States Patent (10) Patent No.: US 9,508,327 B2 JacksOn (45) Date of Patent: Nov. 29, 2016 (54) PITCH ADJUSTMENT DEVICE FOR 2,998,742 A 9, 1961 Pratt STRINGED MUSICAL INSTRUMENTS 3.248,991 A * 5/1966 Cole ........................ G1OD 3/12 84/313 3,390,600 A 7/1968 Kelly, Jr. (71) Applicant: David H. Jackson, Dahlonega, GA 3,479,917. A 1 1/1969 Zitnik, Jr. et al. (US) 3,688,631 A 9, 1972 Jackson 4,080,864 A 3, 1978 Jackson (72) Inventor: David H. Jackson, Dahlonega, GA 4,080,865 A * 3/1978 Gfell ...................... G10D3/143 (US) 84,297 R 4,170,161 A * 10/1979 Kaftan ................... G10D3/143 (*) Notice: Subject to any disclaimer, the term of this 4.457,201 A 7/1984 Storey 84,297 R patent is extended or adjusted under 35 4,535,670 A 8, 1985 Borisoff U.S.C. 154(b) by 0 days. 4,742,750 A 5/1988 Storey 5,140,884 A 8, 1992 Bowden 5,323,680 A 6/1994 Miller et al. (21) Appl. No.: 15/082,972 5.438,902 A 8, 1995 Baker 5,542,330 A 8, 1996 Borisoff (22) Filed: Mar. 28, 2016 5,567,897 A 10/1996 McEwen (65) Prior Publication Data (Continued) Related U.S. Application Data http://duesenberg.de/en/guitars specials/pomona-6-lapsteel.html. (63) Continuation-in-part of application No. 14/640,693, (Continued) filed on Mar. 6, 2015, now Pat. No. 9,299,323. Primary Examiner — Robert W Horn (51) Int.
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