US3076045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of cyclododecatri-(1, 5, 9)-enes
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1960-03-04
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Granted: 1963-01-29
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Expires: 1980-03-04
Abstract
No abstract record available.
Inventors
- 👤 Schneider Kurt
- 👤 Schnell Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:17
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/42; C07C2/44; C07C2/46; C07C2/465; C07C2527/00; C07C2527/06; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2601/00; C07C2601/18; C07C2601/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
PROCESS FOR THE PRODUCTION OF CYCLODODECATRI-(1,5, 9)-ENES WHICH COMPRISES CONTACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE AND PIPERYLENE WITH A CATALYST COMPRISING A TITANIUM HALIDE, ALKYL ALUMINUM HALIDE AND A COMPOUND HAVING A SEMIPOLAR DOUBLE BOND IN ITS MOLECULE WHICH IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF SULFOXIDES, AMINOXIDES AND NITRONES, TO THEREBY FORM CYCLODODECATRI(1,5,9)-ENES WITH OTHER CYCLIC HYDROCARBONS CONTAINING AT LEAST 8 CARBON ATOMS AND AT LEAST TWO DOUBLE BONDS IN THE RING.
Claim 2
Dependent Claim
80 words
PROCESS FOR THE PRODUCTION OF CYCLODODECATRI-(1,5, 9)-ENES WHICH COMPRISES CONTACTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE AND PIPERYLENE WITH A CATALYST COMPRISING A TITANIUM HALIDE, ALKYL ALUMINUM HALIDE AND A COMPOUND HAVING A SEMIPOLAR DOUBLE BOND IN ITS MOLECULE WHICH IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF SULFOXIDES, AMINOXIDES AND NITRONES, TO THEREBY FORM CYCLODODECATRI(1,5,9)-ENES WITH OTHER CYCLIC HYDROCARBONS CONTAINING AT LEAST 8 CARBON ATOMS AND AT LEAST TWO DOUBLE BONDS IN THE RING.
References Cited (Backward Citations)
DE1050333B
Cited
US2888498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |