US2944028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonate detergent compositions
Assignee: California Research LLC
•
Filing: 1956-09-12
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Granted: 1960-07-05
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Expires: 1976-09-12
Abstract
No abstract record available.
Inventors
- 👤 Richard D Stayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:30
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A WATER-SOLUBLE POLYPROPYLENE BENZENE SULFONATE DETERGENT HAVING AN AVERAGE CARBON CONTENT IN THE POLYPROPYLENE CHAIN OF ABOUT 12 CARBON ATOMS, AND, IN AN AMOUNT SUFFICIENT TO ENHANCE THE SUDSING PROPERTIES OF SAID POLYPROPYLENE BENZENE SULFONATE, OF A STRAIGHT-CHAIN ALKYLBENZENE SULFONATE HAVING THE FORMULA
Claim 2
Dependent Claim
49 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A WATER-SOLUBLE POLYPROPYLENE BENZENE SULFONATE DETERGENT HAVING AN AVERAGE CARBON CONTENT IN THE POLYPROPYLENE CHAIN OF ABOUT 12 CARBON ATOMS, AND, IN AN AMOUNT SUFFICIENT TO ENHANCE THE SUDSING PROPERTIES OF SAID POLYPROPYLENE BENZENE SULFONATE, OF A STRAIGHT-CHAIN ALKYLBENZENE SULFONATE HAVING THE FORMULA
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |