(19)
(11) EP 0 763 123 A1

(12)

(43) Date of publication:
19.03.1997 Bulletin 1997/12

(21) Application number: 95921391.0

(22) Date of filing: 07.06.1995
(51) International Patent Classification (IPC): 
A61K 38/ 45( . )
A61K 48/ 00( . )
C12N 15/ 867( . )
(86) International application number:
PCT/US1995/006594
(87) International publication number:
WO 1995/033842 (14.12.1995 Gazette 1996/01)
(84) Designated Contracting States:
CH DE FR GB IT LI NL

(30) Priority: 07.06.1994 US 19940255771

(71) Applicant: Immunomedics, Inc.
Morris Plains, New Jersey 07950 (US)

(72) Inventors:
  • LEUNG, Shui-on
    Madison, NJ 07940 (US)
  • CHANG, Chien-Hsing
    Downingtown, PA 19335 (US)

(74) Representative: Mercer, Christopher Paul 
Carpmaels & Ransford 43, Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) SAFE RETROVIRAL VECTORS, THEIR PRODUCTION AND USE