US2901319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of potassium monopersulfate
Assignee: EIDP Inc
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Filing: 1957-10-31
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Granted: 1959-08-25
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Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 Addieco Alfred A D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:54
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/055; C01B15/06; C01B15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF PREPARING A POTASSIUM MONOPERSULFATE PRODUCT CONTAINING AT LEAST 8.9% ACTIVE OXYGEN COMPRISING REACTING A MONOPERSULFURIC ACID SOLUTION CONTAINING AT LEAST 25% H2SO5 AND AN AMOUNT OF SULFURIC ACID SUCH THAT THE MOLE RATIO OF H2SO5:H2SO4 IS IN THE RANGE 2 TO 10, WITH AN AMOUNT OF A POTASSIUM COMPOUND OF THE GROUP CONSISTING OF THE CARBONATE, BICARBONATE AND HYDROXIDE WHICH WILL PRECIPITATE DIRECTLY A POTASSIUM MONOPERSULFATE PRODUCT HAVING AN ACTIVE OXYGEN CONTENT OF AT LEAST 8.9% AND SEPARATING SAID PRODUCT FROM THE RESULTING MIXTURE.
Claim 2
Independent Claim
87 words
THE METHOD OF PREPARING A POTASSIUM MONOPERSULFATE PRODUCT CONTAINING AT LEAST 8.9% ACTIVE OXYGEN COMPRISING REACTING A MONOPERSULFURIC ACID SOLUTION CONTAINING AT LEAST 25% H2SO5 AND AN AMOUNT OF SULFURIC ACID SUCH THAT THE MOLE RATIO OF H2SO5:H2SO4 IS IN THE RANGE 2 TO 10, WITH AN AMOUNT OF A POTASSIUM COMPOUND OF THE GROUP CONSISTING OF THE CARBONATE, BICARBONATE AND HYDROXIDE WHICH WILL PRECIPITATE DIRECTLY A POTASSIUM MONOPERSULFATE PRODUCT HAVING AN ACTIVE OXYGEN CONTENT OF AT LEAST 8.9% AND SEPARATING SAID PRODUCT FROM THE RESULTING MIXTURE.
References Cited (Backward Citations)
US2802722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |