US3308166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organic polysulphides
Assignee: Societe Nationale des Petroles dAquitaine SA
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Filing: 1964-05-18
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Granted: 1967-03-07
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Biensan Michel
- 👤 Bapseres Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:03
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22; C07C319/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR PRODUCING ORGANIC POLYSULPHIDES, WHICH CONSISTS IN MAKING REACT A MERCAPTAN WITH SULPHUR AT A TEMPERATURE COMPRISED BETWEEN THE AMBIENT TEMPERATURE AND 150*C., A CATALYTIC AMOUNT OF AN AMINE AND A PROMOTER CONSTITUTED BY AN ALIPHATIC ALCOHOL BEING ADMIXED WITH THE MERCAPTAN AND THE SULPHUR.
Claim 2
Dependent Claim
47 words
A PROCESS FOR PRODUCING ORGANIC POLYSULPHIDES, WHICH CONSISTS IN MAKING REACT A MERCAPTAN WITH SULPHUR AT A TEMPERATURE COMPRISED BETWEEN THE AMBIENT TEMPERATURE AND 150*C., A CATALYTIC AMOUNT OF AN AMINE AND A PROMOTER CONSTITUTED BY AN ALIPHATIC ALCOHOL BEING ADMIXED WITH THE MERCAPTAN AND THE SULPHUR.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |