US3756928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ls process for the manufacture of sebacic acid diesters of higher alcoho
Assignee: BASF SE
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Filing: 1971-08-03
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Granted: 1973-09-04
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Expires: 1991-08-03
Abstract
Abstract A PROCESS FOR THE MANUFACTURE OF SEBACIC ACID DIESTERS OF HIGHER ALCOHOLS BY ELECTROCHEMICAL CONDENSATION OF THE CORRESPONDING ADIPIC ACID MONOESTERS IN METHANOLIC SOLUTION, WHEREIN THE FLOW OF CURRENT THROUGH THE ELECTROLYTIC CELL IS INTERMITTENTLY STOPPED AND THE ELECTRODES ARE SHORTCIRCUITED.
Inventors
- 👤 W Eisele
- 👤 H Nohe
- 👤 H Suter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:31
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/29; C25B3/01; C25B3/07
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |