Patent DE613235C successfully refreshed from Google Patents.
US4149986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet bowl cleaner
Assignee: Individual
•
Filing: 1977-11-03
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Granted: 1979-04-17
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Expires: 1997-11-03
Abstract
Abstract A toilet bowl cleaner comprising sodium sulphate, urea, a surfactant, water, sodium stearate and a water soluble dye is disclosed.
Inventors
- 👤 David J. Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/05; C11D10/00; C11D10/04; C11D10/045; C11D17/00; C11D17/0047; C11D17/0056; C11D3/16; C11D3/20; C11D3/2093; C11D3/26; C11D3/32; C11D3/323; C11D3/40; C11D1/00; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A toilet bowl cleaner comprising about 50% to about 60% sodium sulphate, about 17% to about 24% urea, about 8% to about 20% nonionic primary alcohol ethoxylate surfactant, about 8% to about 11% water, about 0.25% to about 2% sodium stearate, and about 1% to about 2% water soluble dye, said percentages being by weight, based on the weight of the composition.
Claim 2
Dependent Claim
62 words
A toilet bowl cleaner comprising about 50% to about 60% sodium sulphate, about 17% to about 24% urea, about 8% to about 20% nonionic primary alcohol ethoxylate surfactant, about 8% to about 11% water, about 0.25% to about 2% sodium stearate, and about 1% to about 2% water soluble dye, said percentages being by weight, based on the weight of the composition.
Claim 3
Dependent Claim
41 words
The toilet bowl cleaner of claim 1 comprising about 55% sodium sulphate, about 23% urea, about 10% surfactant, about 10% water, about 0.4% sodium stearate, and about 1.3% dye, said percentages being by weight based on the weight of the composition.
Claim 4
Dependent Claim
15 words
The toilet bowl cleaner of claim 2 containing minor amounts of silicone and methyl salicylate.
References Cited (Backward Citations)
US4119578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |