US3054656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of improved sodium tripolyphosphate
Assignee: FMC Corp
•
Filing: 1958-12-04
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Granted: 1962-09-18
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Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 Cassidy Joseph
- 👤 Pals Raimond
- 👤 Henry C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:15
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/40; C01B25/41; C01B25/418; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
METHOD OF MAKING AN IMPROVED FREE-FLOWING SODIUM TRIPOLYPHOSPHATE WHICH DOES NOT PRODUCE GRITTY PARTICLES WHEN MIXED INTO DETERGENT SLURRY COMPOSITIONS, WHICH COMPRISES HEATING SODIUM ORTHOPHOSPHATE AT A TEMPERATURE OF ABOUT 300*C. TO 550*C. TO PRODUCE AN ESSENTILALLY ANHYDROUS SODIUM TRIPOLYPHOSPHATE CONTAINING A MAXIMUM OF 0.1% MOISTURE, MIXING SAID SUBSTANTIALLY ANHYDROUS SODIUM TRIPOLYPHOSPHATE WITH SUFFICIENT WATER TO INCREASE THE MOISTURE CONTENT BY 0.1 TO 0.4%, AND RECOVERING THE TREATED SODIUM TRIPOLYPHOSPHATE HAVING AN INCREASED MOISTURE CONTENT.
Claim 2
Dependent Claim
75 words
METHOD OF MAKING AN IMPROVED FREE-FLOWING SODIUM TRIPOLYPHOSPHATE WHICH DOES NOT PRODUCE GRITTY PARTICLES WHEN MIXED INTO DETERGENT SLURRY COMPOSITIONS, WHICH COMPRISES HEATING SODIUM ORTHOPHOSPHATE AT A TEMPERATURE OF ABOUT 300*C. TO 550*C. TO PRODUCE AN ESSENTILALLY ANHYDROUS SODIUM TRIPOLYPHOSPHATE CONTAINING A MAXIMUM OF 0.1% MOISTURE, MIXING SAID SUBSTANTIALLY ANHYDROUS SODIUM TRIPOLYPHOSPHATE WITH SUFFICIENT WATER TO INCREASE THE MOISTURE CONTENT BY 0.1 TO 0.4%, AND RECOVERING THE TREATED SODIUM TRIPOLYPHOSPHATE HAVING AN INCREASED MOISTURE CONTENT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |