Patent US3597361A successfully refreshed from Google Patents.
US3597361A
Expired / Lapsed
US
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Method of preparing agglomerated detergent composition
Assignee: Lever Brothers Co
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Filing: 1969-05-21
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Granted: 1971-08-03
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Expires: 1989-05-21
Abstract
Abstract A METHOD OF PRODUCING AGGLOMERATES OF DRY DETERGENT INGREDIENTS BY CHARGING PARTICULATE DETERGENT INGREDIENTS INTO A AGGLOMERATION ZONE AND MAINTAINING A CONTINUOUSLY FALLING CURTAIN OF SAID INGREDIENTS IN SAID ZONE, CONTACTING SAID PARTICULATE MATERIAL IN SAID FALLING CURTAIN WITH A SODIUM SALT OF ALKYL ARYL SULFONIC ACID TO AGGLOMERATE SAID PARTICULATE MATERIAL, MAINTAINING A TUMBLING BED OF AGGLOMERATING INGREDIENTS AT THE BASE OF SAID FALLING CURTAIN AND WITHDRAWING AGGLOMERATED MATERIAL FROM SAID AGGLOMERATION ZONE, SAID SODIUM SALT OF ALKYL ARYL SULFONIC ACID BEING PREPARED IN SITU BY MERGING SPRAYS OF LIQUID CAUSTIC SODA AND ALKYL SULFONIC ACID.
Inventors
- 👤 Clark A Sumner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:46
CPC Classifications
C; C11; C11D; C11D11/00; C11D11/04; B; B01; B01J; B01J2/00; B01J2/12; C11D11/0082; C11D11/0088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |