Patent US821200A successfully refreshed from Google Patents.
US2947701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray dried detergent composition
Assignee: Lever Brothers Co
•
Filing: 1955-05-09
•
Granted: 1960-08-02
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Edgar E Ruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:23
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/045; C11D1/00; C11D1/66; C11D1/72; C11D1/722; C11D11/00; C11D11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A SPRAY DRIED DETERGENT COMPOSITION COMPRISING FROM ABOUT 5% TO ABOT 15% OF (1) A COMPOUND HAVING THE EMPIRICAL FORMULA
Claim 2
Dependent Claim
20 words
A SPRAY DRIED DETERGENT COMPOSITION COMPRISING FROM ABOUT 5% TO ABOT 15% OF (1) A COMPOUND HAVING THE EMPIRICAL FORMULA
References Cited (Backward Citations)
US2667458A
Cited
US2770600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |