US3274266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of tetrabromocyclododecene
Assignee: Huels AG
•
Filing: 1963-09-26
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Granted: 1966-09-20
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Monkemeyer Karl
- 👤 Sauer Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C07; C07C; C07C17/00; C07C17/013; C07C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
PROCESS FOR THE PRODUCTION OF TETRABROMOCYCLODODECENE WHICH COMPRISES REACTING BROMINE WITH CYCLODODECATRIENE IN A MOLE RATIO WITHIN THE RANGE FROM 2:1 TO 2.2:1 IN THE PRESENCE OF PROPIONIC ACIC, THE WEIGHT RATIO OF CYCLODODECATRIENE TO TOTAL PROPIONIC ACID BEING WITHIN THE RANGE FROM 1:4 TO 1:16, AT TEMPERATUES WITHIN THE RANGE FROM -25 TO 0*C.
Claim 2
Dependent Claim
55 words
PROCESS FOR THE PRODUCTION OF TETRABROMOCYCLODODECENE WHICH COMPRISES REACTING BROMINE WITH CYCLODODECATRIENE IN A MOLE RATIO WITHIN THE RANGE FROM 2:1 TO 2.2:1 IN THE PRESENCE OF PROPIONIC ACIC, THE WEIGHT RATIO OF CYCLODODECATRIENE TO TOTAL PROPIONIC ACID BEING WITHIN THE RANGE FROM 1:4 TO 1:16, AT TEMPERATUES WITHIN THE RANGE FROM -25 TO 0*C.
References Cited (Backward Citations)
US3025329A
Cited
DE1147575B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |