US4460490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lavatory cleansing blocks
Assignee: JEYES HOLDINGS Ltd
•
Filing: 1981-12-17
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Granted: 1984-07-17
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Expires: 2001-12-17
Abstract
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.
Inventors
- 👤 Eric D. Barford
- 👤 Daniel J. Jeffrey
- 👤 Paul A. Raynor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:30
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3955; C11D17/00; C11D17/0039; C11D17/0047; C11D17/0056; C11D17/0065; C11D17/0073; C11D17/0082; C11D3/3953
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
40 words
A lavatory cleansing block comprising a shaped body formed of a slow-dissolving cleaning composition containing at least one surface active agent and a tablet comprising a bleaching agent, the bleaching agent being embedded in or adhered to the shaped body.
Claim 2
Dependent Claim
40 words
A lavatory cleansing block comprising a shaped body formed of a slow-dissolving cleaning composition containing at least one surface active agent and a tablet comprising a bleaching agent, the bleaching agent being embedded in or adhered to the shaped body.
Claim 3
Dependent Claim
18 words
A lavatory cleansing block as claimed in claim 1 having a weight of from 30 to 300 grams.
Claim 4
Dependent Claim
43 words
A lavatory cleansing block as claimed in claim 1 or claim 2 in which the bleach tablet is provided with a coating of a readily water-soluble or water-dispersible material to prevent direct contact of the tablet with the material of the shaped body.
References Cited (Backward Citations)
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US3294692A
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |