US3062833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of 4, 5-dichloro-1, 2-dithiole-3-one
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1960-02-12
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Granted: 1962-11-06
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Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
- 👤 Boberg Friedrich
- 👤 Schultze Georg Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:32
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07D; C07D339/00; C07D339/02; C07D339/04; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2443; C10L1/245; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR PRODUCING 4,5-DICHLORO-1,2-DITHIOLE-3ONE WHICH COMPRISES REACTING IN INTIMATE ADMIXTURE WITH A FRIEDEL-CRAFTS CATALYST (A) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HEPTACHLOROPROPANE, HEXACHLOROPROPENE, AND 1,1,1-TRIFLUORO-2,3,3-TRICHLOROPROPENEAND (B) A SULFUR SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF (A) SULFUR, AND (B) A SULFUR CHLORIDE OF THE FORMULA R-SCL WHEREIN R REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF CL, SCL, CH2CL, CHCL2, AND CCL3 AND ADMIXTURES OF (A) AND (B) AND HYDROLZING THE FORMED PRODUCT WIHT AN ACID IN AN AQUEOUS MEDIUM. 8. 4,5-DICHLORO-1,2-DITHIOLE-3-ONE.
Claim 2
Dependent Claim
86 words
A PROCESS FOR PRODUCING 4,5-DICHLORO-1,2-DITHIOLE-3ONE WHICH COMPRISES REACTING IN INTIMATE ADMIXTURE WITH A FRIEDEL-CRAFTS CATALYST (A) A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF HEPTACHLOROPROPANE, HEXACHLOROPROPENE, AND 1,1,1-TRIFLUORO-2,3,3-TRICHLOROPROPENEAND (B) A SULFUR SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF (A) SULFUR, AND (B) A SULFUR CHLORIDE OF THE FORMULA R-SCL WHEREIN R REPRESENTS A RADICAL SELECTED FROM THE GROUP CONSISTING OF CL, SCL, CH2CL, CHCL2, AND CCL3 AND ADMIXTURES OF (A) AND (B) AND HYDROLZING THE FORMED PRODUCT WIHT AN ACID IN AN AQUEOUS MEDIUM. 8. 4,5-DICHLORO-1,2-DITHIOLE-3-ONE.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |