Patent US3172859A successfully refreshed from Google Patents.
US3172859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Betergent briquette
Assignee: —
•
Filing: —
•
Granted: 1965-03-09
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Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:44
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D3/00; C11D3/02; C11D3/04; C11D3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A WATER-SOLUBLE BRIQUETTE COMPRISING AN INTIMATE ADMIXTURE COMPACTED IN THE PRESENCE OF 5 TO 20 PERCENT OF WATER AT A PRESSURE IN THE RANGE 250 TO 700 POUNDS PER SQUARE INCH TO FORM THE FINISH BRIQUETTE, SAID BRIQUETTE CONSISTING ESSENTIALLY OF, BY WEIGHT, 15 TO 80 PERCENT WATER-SOLUBLE NORMAL PRIMARY ALKYL DETERGENT SALT SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL, ALKALINE EARTH METAL AND AMMONIUM SALTS, THE ALKYL GROUP CONTAINING 10 TO 20 CARBON ATOMS AND AVERAGING 12 TO 18 CARBON ATOMS, 25 TO 75 PERCENT WATERSOLUBLE INORGANIC CONDENSED SODIUM PHSOPHATE DETERGENT BUILDER, AND THE 5 TO 20 PERCENT OF WATER WHICH WAS PRESENT DURING THE COMPACTING STEP.
Claim 2
Dependent Claim
110 words
A WATER-SOLUBLE BRIQUETTE COMPRISING AN INTIMATE ADMIXTURE COMPACTED IN THE PRESENCE OF 5 TO 20 PERCENT OF WATER AT A PRESSURE IN THE RANGE 250 TO 700 POUNDS PER SQUARE INCH TO FORM THE FINISH BRIQUETTE, SAID BRIQUETTE CONSISTING ESSENTIALLY OF, BY WEIGHT, 15 TO 80 PERCENT WATER-SOLUBLE NORMAL PRIMARY ALKYL DETERGENT SALT SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL, ALKALINE EARTH METAL AND AMMONIUM SALTS, THE ALKYL GROUP CONTAINING 10 TO 20 CARBON ATOMS AND AVERAGING 12 TO 18 CARBON ATOMS, 25 TO 75 PERCENT WATERSOLUBLE INORGANIC CONDENSED SODIUM PHSOPHATE DETERGENT BUILDER, AND THE 5 TO 20 PERCENT OF WATER WHICH WAS PRESENT DURING THE COMPACTING STEP.
References Cited (Backward Citations)
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Cited
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Cited
US2504411A
Cited
US2781321A
Cited
US2875155A
Cited
US2956026A
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US3001948A
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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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |