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Patent US3817870A successfully refreshed from Google Patents.
US3817870A
Expired / Lapsed
US
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Laundering compositions
Assignee: Individual
•
Filing: 1972-05-08
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Granted: 1974-06-18
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Expires: 1992-05-08
Abstract
Abstract LAUNDERING COMPOSITIONS, CONTAINING A DETERGENT SURFACETANT AND, AS A BUILDER THEREFOR, AN ALKALI METAL OR AMMONIUM SALT OF MALIC OR CITRIC ACIDS TOGETHER WITH OR IN THE ABSENCE OF SODIUM METASILICATE, ELIMINATE THE NEED FOR USING PHOSPHATES.
Inventors
- 👤 R Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:52
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/02; C11D3/04; C11D3/08
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |