Patent US3718700A successfully refreshed from Google Patents.
US3718700A
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New and useful dithiols, their preparation and compositions made from them
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1970-01-28
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Granted: 1973-02-27
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Expires: 1990-01-28
Abstract
Abstract New dithiol compounds have formal and thioether groups and the general formula
Inventors
- 👤 C Esclamadon
- 👤 J Signouret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:47
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/0243; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A dithiol according to claim 1, characterized in that it is 1,13-dimercapto-2,12-dithia-6,8-dioxatridecane.
Claim 2
Dependent Claim
12 words
A dithiol according to claim 1, characterized in that it is 1,17-dimercapto-2,4,14,16-tetrathia-8,10-dioxaheptadecane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |