Patent US3052735A successfully refreshed from Google Patents.
US3052735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of diallylic compounds
Assignee: Shell USA Inc
•
Filing: 1960-04-08
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Granted: 1962-09-04
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Expires: 1980-04-08
Abstract
No abstract record available.
Inventors
- 👤 Russell L Hodgson
- 👤 John H Raley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/19; C07C1/00; C07C1/26; C07C17/00; C07C17/26; C07C17/263; C07C17/269; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
THE PROCESS FOR PRODUCING DIALLYLIC COMPOUNDS WHICH COMPRISES REACTING AN ALIPHATIC MONO-ALLYLIC HALIDE IN VAPOR PHASE AT ABOUT 75 TO ABOUT 300*C., WITH METALLIC COPPER IN COMBINATION WITH A FINELY DIVIDED SOLID SUPPORT MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, SILICON CARBIDE AND PUMICE, IN A WEIGHT RATIO OF SAID COMBINED COPPER AND FINELY DIVIDED SOLID SUPPORT TO SAID ALIPHATIC MONO-ALLYLIC HALIDE IN THE RANGE OF FROM ABOUT 5:1 TO ABOUT 200:1, SAID COMBINATION OF METALLIC COPPER AND FINELY DIVIDED SUPPORT CONTAINING FROM ABOUT 5 TO ABOUT 45% BY WEIGHT OF COPPER.
Claim 2
Dependent Claim
94 words
THE PROCESS FOR PRODUCING DIALLYLIC COMPOUNDS WHICH COMPRISES REACTING AN ALIPHATIC MONO-ALLYLIC HALIDE IN VAPOR PHASE AT ABOUT 75 TO ABOUT 300*C., WITH METALLIC COPPER IN COMBINATION WITH A FINELY DIVIDED SOLID SUPPORT MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, SILICON CARBIDE AND PUMICE, IN A WEIGHT RATIO OF SAID COMBINED COPPER AND FINELY DIVIDED SOLID SUPPORT TO SAID ALIPHATIC MONO-ALLYLIC HALIDE IN THE RANGE OF FROM ABOUT 5:1 TO ABOUT 200:1, SAID COMBINATION OF METALLIC COPPER AND FINELY DIVIDED SUPPORT CONTAINING FROM ABOUT 5 TO ABOUT 45% BY WEIGHT OF COPPER.
Claim 3
Dependent Claim
3 words
THE COMPOUND 1,6-DICHLORO-1,5-HEXADIENE.
Claim 4
Dependent Claim
3 words
THE COMPOUND 1,6-DICHLORO-1,5-HEXADIENE.
References Cited (Backward Citations)
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US2446475A
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US2696475A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |