Patent US4328925A successfully refreshed from Google Patents.
US3108969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of mixing sodium tripolyphosphate and dichloroisocyanuric acid
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-12-22
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Granted: 1963-10-29
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Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 William F Symes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:22
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3958; B; B01; B01J; B01J2/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE PROCESS WHICH COMPRISES INTIMATELY MIXING POWDERED SODIUM TRIPOLYPHOSPHATE WITH WATER WET DICHLOROISOCYANURIC ACID, AS SOLE INGREDIENTS AT A TEMPERATURE IN THE RANGE OF ABOUT 10%C TO ABOUT 45*C UNTIL A DRY FREEFLOWING PRODUCT IS OBTAINED, SAID WATER WET DICHLOROISOCYANURIC ACID BEING THE WATER WET PRECIPITATE OF DICLOROISOCYANURIC ACID OBTAINED BY PREPARING DICHLOROISOYANURIC ACID IN AN AQUEOUS MEDIUM FROM APPROPRIATE REAGENTS AND USING THE DICHLOROSISOCYANURIC ACID PRIOR TO SUBJECTING IT TO A DRYING OPERATION, THE AMOUNT OF SODIUM TRIPOLYPHOSPHATE USED BEING IN THE RANGE OF ABOUT 6 TO ABOUT 500 PARTS BY WEIGHT, PER UNIT WEIGHT OF WATER IN THE WATER WET DICHLOROISOYANURIC ACID, SAID WATER WET DICHLOROISOCYANURIC ACID CONTAINING FROM ABOUT 10 TO ABOUT 65 PARTS BY WEIGHT OF WATER PER 100 PARTS BY WEIGHT OF DICHLOROISOCYANURIC ACID ON A DRY BASIS.
Claim 2
Dependent Claim
133 words
THE PROCESS WHICH COMPRISES INTIMATELY MIXING POWDERED SODIUM TRIPOLYPHOSPHATE WITH WATER WET DICHLOROISOCYANURIC ACID, AS SOLE INGREDIENTS AT A TEMPERATURE IN THE RANGE OF ABOUT 10%C TO ABOUT 45*C UNTIL A DRY FREEFLOWING PRODUCT IS OBTAINED, SAID WATER WET DICHLOROISOCYANURIC ACID BEING THE WATER WET PRECIPITATE OF DICLOROISOCYANURIC ACID OBTAINED BY PREPARING DICHLOROISOYANURIC ACID IN AN AQUEOUS MEDIUM FROM APPROPRIATE REAGENTS AND USING THE DICHLOROSISOCYANURIC ACID PRIOR TO SUBJECTING IT TO A DRYING OPERATION, THE AMOUNT OF SODIUM TRIPOLYPHOSPHATE USED BEING IN THE RANGE OF ABOUT 6 TO ABOUT 500 PARTS BY WEIGHT, PER UNIT WEIGHT OF WATER IN THE WATER WET DICHLOROISOYANURIC ACID, SAID WATER WET DICHLOROISOCYANURIC ACID CONTAINING FROM ABOUT 10 TO ABOUT 65 PARTS BY WEIGHT OF WATER PER 100 PARTS BY WEIGHT OF DICHLOROISOCYANURIC ACID ON A DRY BASIS.
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |