US2754338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydroalkylation of non-aromatic bicyclic hydrocarbons
Assignee: Universal Oil Products Co
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Filing: 1953-12-28
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Granted: 1956-07-10
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02; C07C2531/12; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR THE DEHYDROALKYLATION OF AN UNSATURATED BICYLIC TERPENE CONTAINING A 6-MEMBERED CARBON ATOM RING AND A RING SELECTED FROM THE GROUP CONSISTING OF 3 AND 4-MEMBERED CARBON ATOM RINGS, WHICH COMPRISES REACTING AN OLEFINIC HYDROCARBON WITH SAID BICYCLIC TERPENE AT A TEMPERATURE RANGING FROM ABOUT 100* C. TO ABOUT 400* C. IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND THEIR HYDRIDES, AND AN ORGANIC PROMOTER COMPOUND CAPABLE OF FORMING AN ORGANOMETALLIC COMPOUND WITH SAID CATALYST, AND RECOVERING THE RESULTANT CONDENSATION PRODUCTS.
Claim 2
Dependent Claim
52 words
A PROCESS FOR THE DEHYDROALKYLATION OF A-PINENE WHICH COMPRISES REACTING ETHYLENE WITH SAID PINENE AT A TEMPERATURE RANGING FROM ABOUT 150$ C. TO ABOUT 275* C. IN THE PRESENCE OF A CATALYST COMPRISING SODIUM AND AN ORGANIC PROMOTER COMPOUND CAPABLE OF FORMING AN ORGANOMETALLIC COMPOUND WITH SODIUM, AND RECOVERING THE RESULTANT P-T-AMYLTOLUENE.
References Cited (Backward Citations)
US2448641A
Cited
US2548803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |