Patent US3817863A successfully refreshed from Google Patents.
US3817863A
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US
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Detergent formulations
Assignee: Monsanto Co
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Filing: 1972-08-23
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Granted: 1974-06-18
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Expires: 1992-08-23
Abstract
Abstract DETERGENT FORMULATIONS COMPRISING A SURFACTANT AND TETRASODIUM OR TETRAPOTASSIUM TETRAHYDROFURAN-2,2,5,5TETRACARBOXYLATE OR HYDRATES THEREOF AS A BUILDER EXHIBIT EFFECTIVE CLEANING ACTION.
Inventors
- 👤 Yu Shen Chung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2096; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C07D307/24
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 |