US3567610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chlorinated paraffins
Assignee: Dover Chemical Corp
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Filing: 1968-06-24
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Granted: 1971-03-02
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Expires: 1988-06-24
Abstract
Abstract PARAFFIN HYDROCARBON ARE CHLORINATED IN THE PRESENCE OF A MINOR AMOUNT OF AN ADDITIVE CAPABLE OF OVERCOMING CONTAMINATION PRESENT IN THE REACTION ZONE WHICH WOULD OTHERWISE RETARD THE CHLORINATION REACTION. THE ADDITIVES UTILIZED IN THE PROCESS ARE FERROCYANIC ACID, FERRICYANIC ACID, AND FERROCYANIDES OR FERRICYANIDES OF AMMONIA GROUP I METALS, OR GROUP II METALS.
Inventors
- 👤 John E Krol
- 👤 Albert J Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:28
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |