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US3446583A
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US
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Process of preparing water-soluble phosphates
Assignee: Stamicarbon BV
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Filing: 1965-03-18
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Granted: 1969-05-27
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Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Abraham H De Rooij
- 👤 Jan Elmendorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:15
CPC Classifications
C; C05; C05B; C05B11/00; C05B11/04; C05B11/06; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/28; C01B25/38; C01B25/40; C01B25/405; C01B25/46; C05B1/00; C05B1/04; C05B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3245777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |