(19)
(11) EP 0 378 680 A1

(12)

(43) Date of publication:
25.07.1990 Bulletin 1990/30

(21) Application number: 89909091.0

(22) Date of filing: 18.07.1989
(51) International Patent Classification (IPC): 
A61L 9/ 01( . )
A61L 11/ 00( . )
(86) International application number:
PCT/US1989/003041
(87) International publication number:
WO 1990/000906 (08.02.1990 Gazette 1990/04)
(84) Designated Contracting States:
CH DE FR GB IT LI NL SE

(30) Priority: 19.07.1988 US 19880221286

(71) Applicant: THETFORD CORPORATION
Ann Arbor Michigan 48103 (US)

(72) Inventor:
  • BURROWS, Mary, R.
    Ann Arbor, MI 48103 (US)

(74) Representative: Collier, Jeremy Austin Grey, et al 
J.A.KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)

   


(54) COMPOSITIONS AND METHODS FOR DEODORIZING TOILET HOLDING TANKS