US2730559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of diallylic compounds
Assignee: Shell Development Co
•
Filing: 1953-04-27
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Granted: 1956-01-10
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Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Lee M Porter
- 👤 Frederick F Rust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:53
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/86; C07C2/861; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/942
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A PROCESS FOR PREPARING A DIALLYLIC OMPOUND WHICH COMPRISES HEATING A POLYCHLORINATED ALKANE WHICH IS INCAPABLE OF SPLITTING OUT HYDROGEN HALIDE UNDER THE CONDITIONS OF THE PROCESS TO A POLYZING TEMPERATURE BETWEEN 400* C. AND 600* C. FOR A SHORT PERIOD IN THE PRESENCE OF A BETA, GAMMA-MONOETHYLENICALLY UNSATURATED ALIPHATIC HYDROCARBON, SAID POLYCHLORINATED COMPOUND AND UNSATURATED ALIPHATIC HYDROCARBON BEING COMBINED IN A MOLE RATIO OF 1:4 TO 1:12, AND THEN RECOVERING THE DESIRED DIALLYLIC COMPOUND FROM THE RESULTING MIXTURE.
References Cited (Backward Citations)
US2370513A
Cited
US2402034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |