(19)

(11)

EP 0 140 896 A1

(12)

(43) Date of publication: 15.05.1985 Bulletin 1985/20 (21) Application number: 84900261.0 (22) Date of filing: 14.12.1983

(51) International Patent Classification (IPC):  G01N 33/ 531( . ) G01N 33/ 569( . ) G01N 33/ 563( . ) G01N 33/ 68( . ) (86) International application number: PCT/US1983/001953 (87) International publication number: WO 1984/004170 (25.10.1984 Gazette 1984/25)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 18.04.1983 US 19830485736 (71) Applicant: QUIDEL La Jolla, CA 92037 (US)	(72) Inventors: KATZ, David, H. La Jolla, CA 92037 (US) CHANG, Shung-Ho Encinatas, CA 92024 (US) (74) Representative: Sommerville, John Henry, et al  SOMMERVILLE & RUSHTON 11 Holywell Hill St. Albans Hertfordshire, AL1 1EZ St. Albans Hertfordshire, AL1 1EZ (GB)