Patent US2581278A successfully refreshed from Google Patents.
US2581278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive detergent composition
Assignee: Hall Labs LLC
•
Filing: 1949-10-22
•
Granted: 1952-01-01
•
Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 Casimir J Munter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:02
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/04; C11D9/06; C11D9/08; C11D9/10; C11D9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A FINELY-DIVIDED FREE-FLOWING DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 40%-60% BY WEIGHT OF A SODIUM SOAP, FROM ABOUT 30%-40% BY WEIGHT OF FINELY-DIVIDED WATER-INSOLUBLE CRYSTALLINE SODIUM METAPHOSPHATE, FROM ABOUT 2%-10% BY WEIGHT OF FINELY-DIVIDED CRYSTALLINE POTASSIUM METAPHOSPHATE AND FROM ABOUT 5%-10% BY WEIGHT OF ANHYDROUS TETRASODIUM PYROPHOSHATE, SAID DETERGENT WHEN USED HAVING BOTH WATER SOFTENING AND ABRASIVE PROPERTIES RESULTING FROM THAT PORTION OF THE CRYSTEALLINE SODIUM METAPHOSPHATE WHICH IS NOT DISSOLVED WHILE THE PRODUCTS IS BEING USED.
Claim 2
Dependent Claim
78 words
A FINELY-DIVIDED FREE-FLOWING DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 40%-60% BY WEIGHT OF A SODIUM SOAP, FROM ABOUT 30%-40% BY WEIGHT OF FINELY-DIVIDED WATER-INSOLUBLE CRYSTALLINE SODIUM METAPHOSPHATE, FROM ABOUT 2%-10% BY WEIGHT OF FINELY-DIVIDED CRYSTALLINE POTASSIUM METAPHOSPHATE AND FROM ABOUT 5%-10% BY WEIGHT OF ANHYDROUS TETRASODIUM PYROPHOSHATE, SAID DETERGENT WHEN USED HAVING BOTH WATER SOFTENING AND ABRASIVE PROPERTIES RESULTING FROM THAT PORTION OF THE CRYSTEALLINE SODIUM METAPHOSPHATE WHICH IS NOT DISSOLVED WHILE THE PRODUCTS IS BEING USED.
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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |