US2595238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing potassium chlorate crystals of special appearance
Assignee: Pechiney SA
•
Filing: 1947-05-16
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Granted: 1952-05-06
•
Expires: 1967-05-16
Abstract
No abstract record available.
Inventors
- 👤 Frejacques Jean Leon Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/12; C01B11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A METHOD OF PRODUCING POTASSIUM CHLORATE CRYSTALS HAVING SUBSTANTIALLY NO COLOR, CONSISTING OF: INTRODUCING POTASSIUM CHLORATE TO WARM WATER, ADDING TO THE AQUEOUS SOLUTION OF THE SALT AN AMOUNT IN THE ORDER OF 0.1 TO 1.0% OF A SULPHONATED PARAFFIN HYDROCARBON, SUBSEQUENTLY COOLING THE AQUEOUS SOLUTION TO BRING ABOUT THE DESIRED CRYSTALLIZATION, AND SEPARATING THE POTASSIUM CHLORATE CRYSTALS FROM THE AQUEOUS SOLUTION.
Claim 2
Independent Claim
62 words
A METHOD OF PRODUCING POTASSIUM CHLORATE CRYSTALS HAVING SUBSTANTIALLY NO COLOR, CONSISTING OF: INTRODUCING POTASSIUM CHLORATE TO WARM WATER, ADDING TO THE AQUEOUS SOLUTION OF THE SALT AN AMOUNT IN THE ORDER OF 0.1 TO 1.0% OF A SULPHONATED PARAFFIN HYDROCARBON, SUBSEQUENTLY COOLING THE AQUEOUS SOLUTION TO BRING ABOUT THE DESIRED CRYSTALLIZATION, AND SEPARATING THE POTASSIUM CHLORATE CRYSTALS FROM THE AQUEOUS SOLUTION.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |