United States Patent (10) Patent No.: US 9,586,910 B2 Johnson (45) Date of Patent: Mar
USOO9586910B2 (12) United States Patent (10) Patent No.: US 9,586,910 B2 Johnson (45) Date of Patent: Mar. 7, 2017 (54) 3.5-DIAMINO-6-CHLORO-N-(N-(4-(4-(2- 3.360,517 A 12/1967 Cragoe, Jr. et al. (HEXYL(2,3,4,5,6-PENTAHYDROXYHEXYL) 33. A s 3. E. et al. AMINO)ETHOXY)PHENYL)BUTYL) 3,472,848.I wr. A 10/1969 Cragoe,OS Jr.3. et al. CARBAMIMIDOYL)PYRAZINE-2- 3.487,082 A 12/1969 Cragoe, Jr. et al. CARBOXAMIDE 3,491,094. A 1/1970 Cragoe, Jr. et al. 3,503.973 A 3/1970 Cragoe, Jr. et al. (71) Applicant: Parion Sciences, Inc., Durham, NC 3,506,662 A 4/1970 Cragoe, Jr. et al. (US) 3,507,865 A 4, 1970 Jones et al. 3,507,866 A 4, 1970 Jones et al. 3,515,723 A 6, 1970 C , Jr. et al. (72) Inventor: Michael R. Johnson, Chapel Hill, NC 3,527,758 A 9, 1970 E. E. A. (US) 3,531,484. A 9/1970 Bicking et al. Continued (73) Assignee: Parion Sciences, Inc., Durham, NC ( ) (US) FOREIGN PATENT DOCUMENTS (*) Notice: Subject to any disclaimer, the term of this CN 1.01534.813 9, 2009 patent is extended or adjusted under 35 FR 152567O 4f1968 U.S.C. 154(b) by 241 days. (Continued) (21) Appl. No.: 14/132,194 OTHER PUBLICATIONS (22) Filed: Dec. 18, 2013 U.S. Appl. No. 61/738,235, Johnson. Continued (65) Prior Publication Data ( ) US 2014/O107133 A1 Apr. 17, 2014 Primary Examiner — Kortney L.
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