US3799880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray dried controlled density detergent composition
Assignee: Lever Brothers Co
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Filing: 1972-01-04
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Granted: 1974-03-26
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Expires: 1992-01-04
Abstract
Abstract SOAP AND A RESIN WHICH IS A COPOLYMER OF MALEIC ANHYDRIDE AND ETHER ETHYLENE OR METHYL VINYL ETHER, ARE USED IN COMBINATION AS ADDITIVES TO NONIONIC DETERGENT CRUTCHER SLURRIES TO BE SPRAY DRIED, FOR THE PURPOSE OF CONTROLLING THE BULK DENSITY OF THE SPRAY-DRIED PRODUCT WITHIN A DESIRABLY LOW RANGE.
Inventors
- 👤 W Kelly
- 👤 L Lander
- 👤 F Mlcoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3761; C11D1/00; C11D1/66; C11D11/00; C11D11/02; C11D17/00; C11D17/06
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |