(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