Lavatory cleansing blocks
US4460490A · kind A · utility
94Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1981 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Dec 17, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0082
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free-standing lavatory cleansing block for immersion in the cistern of a lavatory comprises a shaped body (1) formed of a slow-dissolving cleaning composition containing at least one surface active agent and a tablet (2) comprising a bleaching agent embedded in or adhered to the shaped body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.