US3063801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-degradative drying of sodium triphosphate hexahydrate
Assignee: Monsanto Chemicals Ltd
•
Filing: 1958-07-25
•
Granted: 1962-11-13
•
Expires: 1978-07-25
Abstract
No abstract record available.
Inventors
- 👤 Warren O Groves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:33
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/40; C01B25/41; C01B25/418; F; F26; F26B; F26B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
METHOD FOR THE PRODUCTION OF ANHYDROUS SODIUM TRIPHOSPHATE FROM SODIUM TRIPHOSPHATE HEXAHYDRATE WITHOUT DEGRADATION WHICH COMPRISES CONTACTING A MIXTURE OF SODIUM TRIPHOSPHATE HEXAHYDRATE AND WATER WITH A STREAM OF HEATED GAS AT A TEMPERATURE OF FROM 110*C. TO 900*C. CONTAINING WATER VAPOR AT A PARTIAL PRESSURE OF AT LEAST 190 MM. HG, BUT A RELATIVE HUMIDITY LESS THAN 40% AND THEREAFTER COLLECTING THE SAID ANHYDROUS SODIUM TRIPHOSPHATE PRODUCT.
Claim 2
Dependent Claim
68 words
METHOD FOR THE PRODUCTION OF ANHYDROUS SODIUM TRIPHOSPHATE FROM SODIUM TRIPHOSPHATE HEXAHYDRATE WITHOUT DEGRADATION WHICH COMPRISES CONTACTING A MIXTURE OF SODIUM TRIPHOSPHATE HEXAHYDRATE AND WATER WITH A STREAM OF HEATED GAS AT A TEMPERATURE OF FROM 110*C. TO 900*C. CONTAINING WATER VAPOR AT A PARTIAL PRESSURE OF AT LEAST 190 MM. HG, BUT A RELATIVE HUMIDITY LESS THAN 40% AND THEREAFTER COLLECTING THE SAID ANHYDROUS SODIUM TRIPHOSPHATE PRODUCT.
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |