US2631980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncaking alkyl aryl sulfonate detergent compositions
Assignee: California Research LLC
•
Filing: 1949-07-22
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Granted: 1953-03-17
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Expires: 1969-07-22
Abstract
No abstract record available.
Inventors
- 👤 Allen H Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:36
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/37; C11D1/12; C11D1/22; C11D1/14; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A SOLID PARTICLE FORM SYNTHETIC DETERGENT CHARACTERIZED BY HIGH RESISTANCE TO CAKING AT HIGH RELATIVE HUMIDITY AND HIGH ATMOSPHERIC TEMPERATURE PREPARED BY FORMING AN AQUEOUS SLURRY CONTAINING AS ITS SOLID COMPONENTS 20 TO 40% BY WEIGHT OF ACTIVE DETERGENT MATERIAL AND 60 TO 80% BY WEIGHT OF INORGANIC BUILDERS, THE ACTIVE DETERGENT MATERIAL CONSISTING ESSENTIALLY OF 10 TO 30% BY WEIGHT OF AN ALKYL SULFATE CONTAINING 8 TO 12 CARBON ATOMS IN THE ALKYL GROUP AND 70 TO 90% OF A MONOALKYL BENZENE SULFONTAE HAVING A POLYPROPYLENE RADICAL CONTAINING 12 TO 15 CARBON ATOMS AS ITS ALKYL GROUP, AND SPRAY-DRYING THE SLURRY.
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |