US3625906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soap-detergent tablets
Assignee: Lever Brothers Co
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Filing: 1968-10-29
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Granted: 1971-12-07
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Expires: 1988-10-29
Abstract
Abstract Personal washing tablets consisting essentially of a soap and an alkali metal or alkaline earth metal sulfate of a primary alcohol 10-75 percent of the molecules of said alcohol being branched, and wherein the soap content is 90-40 percent by weight of the combined contents of the soap and the sulfate.
Inventors
- 👤 Allan Alsbury
- 👤 Dennis Parker Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:38
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/042; C11D1/00; C11D1/02; C11D1/12; C11D1/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
30 words
The toilet tablet as defined by claim 1 which further contains about 10-20 percent by weight of the soap of a free fatty acid superfatting agent derived from said soap.
Claim 2
Dependent Claim
51 words
The toilet as defined by claim 1 wherein component (a) is sodium tallow soap, and component (b) is the sodium sulfate salt of mixed C14 to C15 linear primary alkanols, about 25 percent of which molecules have a 2-methyl branch chain; the weight ratio of soap to sulfate being about 40:60.
Claim 3
Dependent Claim
68 words
The toilet tablet as defined by claim 1 wherein component (a) is a mixture of sodium tallow soap with sodium palm kernel oil soap in the weight ratio of about 80:20, and component (b) is the sodium sulfate salt of mixed C14 to C15 linear primary alkanols, about 25 percent of which molecules have a 2-methyl branch chain; the weight ratio of soap to sulfate being about 60:40.
Claim 4
Dependent Claim
91 words
The toilet table as defined by claim 2 wherein component (a) is a mixture of sodium tallow soap with sodium coconut oil soap in the weight ratio of about 35:65, and component (b) is the sodium sulfate salt of mixed C14 to C15 linear primary alkanols, about 25 percent of which molecules have a 2-methyl branch chain; the weight ratio of soap to sulfate being about 70:30; said toilet tablet further containing about 10 percent by weight of the soap of a free fatty acid superfatting agent derived from said soap.
Claim 5
Dependent Claim
19 words
The toilet tablet as defined by claim 5 wherein the weight ratio of soap to sulfate is about 60:40.
Claim 6
Dependent Claim
19 words
The toilet tablet as defined by claim 5 wherein the weight ratio of soap to sulfate is about 50:50.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |