US3344076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing detergent tablets
Assignee: Lever Brothers Co
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Filing: 1962-03-28
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Granted: 1967-09-26
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward D Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:32
CPC Classifications
C; C11; C11D; 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
135 words
IN THE PROCESS OF PREPARING STRONG, ABRASION RESISTANT, FAST DISSOLVING, LOW SUDSING, COMPRESSED DETERGENT TABLETS AND BRIQUETTES COMPRISING BLENDING TOGETHER A MIXTURE CONSISTING ESSENTIALLY OF (1) FROM ABOUT 4% TO ABOUT 13% BY WEIGHT OF SYNTHETIC ORGANIC NONIONIC DETERGENT AND (2) FROM ABOUT 20% TO ABOUT 95% BY WEIGHT OF A MIXTURE OF 5% TO 90% BY WEIGHT OF FORM 1 PENTASODIUM TRIPOLYPHOSPHATE PLUS 95% TO 10% BY WEIGHT RESPECTIVELY OF FORM II PENTASODIUM TRIPOLYPHOSPHATE, THE WEIGHT RATIO OF PHOSPHATE TO NONIOMIC DETERGENT BEING FROM ABOUT 2:1 TO 20:1; AND COMPRESSING THE RESULTING GRANULAR MIXTURE INTO TABLETS; THE IMPROVEMENT WHICH COMPRISES CHILLING THE COMPRESSED TABLETS TO ACCELERATE THE STRENGTHENING THEREOF BY EXPOSING THE COMPRESSED TABLETS TO AIR HAVING A TEMPERATURE FROM ABOUT 10*F. TO ABOUT 45*F. FOR FROM ABOUT 5 MINUTES TO ABOUT 20 MINUTES.
Claim 2
Dependent Claim
135 words
IN THE PROCESS OF PREPARING STRONG, ABRASION RESISTANT, FAST DISSOLVING, LOW SUDSING, COMPRESSED DETERGENT TABLETS AND BRIQUETTES COMPRISING BLENDING TOGETHER A MIXTURE CONSISTING ESSENTIALLY OF (1) FROM ABOUT 4% TO ABOUT 13% BY WEIGHT OF SYNTHETIC ORGANIC NONIONIC DETERGENT AND (2) FROM ABOUT 20% TO ABOUT 95% BY WEIGHT OF A MIXTURE OF 5% TO 90% BY WEIGHT OF FORM 1 PENTASODIUM TRIPOLYPHOSPHATE PLUS 95% TO 10% BY WEIGHT RESPECTIVELY OF FORM II PENTASODIUM TRIPOLYPHOSPHATE, THE WEIGHT RATIO OF PHOSPHATE TO NONIOMIC DETERGENT BEING FROM ABOUT 2:1 TO 20:1; AND COMPRESSING THE RESULTING GRANULAR MIXTURE INTO TABLETS; THE IMPROVEMENT WHICH COMPRISES CHILLING THE COMPRESSED TABLETS TO ACCELERATE THE STRENGTHENING THEREOF BY EXPOSING THE COMPRESSED TABLETS TO AIR HAVING A TEMPERATURE FROM ABOUT 10*F. TO ABOUT 45*F. FOR FROM ABOUT 5 MINUTES TO ABOUT 20 MINUTES.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |