US2962354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing condensed phosphatesalts
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-06-27
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Granted: 1960-11-29
•
Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 James W Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/39; C01B25/395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
IN A METHOD FOR PRODUCING NAPO3-11 BY MOLECULAR DEHYDRATION OF MONOSODIUM DIHYDROGEN ORTHOPHOSPHATE AT AN ELEVATED TEMPERATURE BELOW THE MELTING POINT OF THE NAPO3-11, THE IMPROVEMENT WHICH COMPRISES ADDING AT LEAST ABOUT 2 WEIGHT PERCENT OF SOLID CRYSTALLINE NAPO3-11 TO THE MONOSODIUM DIHYDORGEN ORTHOPHOSPHATE PRIOR TO MOLECULAR DEHYDRATION THEREOF
Claim 2
Dependent Claim
49 words
IN A METHOD FOR PRODUCING NAPO3-11 BY MOLECULAR DEHYDRATION OF MONOSODIUM DIHYDROGEN ORTHOPHOSPHATE AT AN ELEVATED TEMPERATURE BELOW THE MELTING POINT OF THE NAPO3-11, THE IMPROVEMENT WHICH COMPRISES ADDING AT LEAST ABOUT 2 WEIGHT PERCENT OF SOLID CRYSTALLINE NAPO3-11 TO THE MONOSODIUM DIHYDORGEN ORTHOPHOSPHATE PRIOR TO MOLECULAR DEHYDRATION THEREOF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |