US3274283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of conjugated diolefines
Assignee: Distillers Co Yeast Ltd
•
Filing: 1962-04-16
•
Granted: 1966-09-20
•
Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Bethell James Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:45
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; B; B01; B01J; B01J27/00; B01J27/14; B01J27/16; B01J27/18; B01J27/1802; B01J27/1813; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR THE PRODUCTION OF A CONJUGATED DIOLEFINE WHICHH COMPRISES REACTING A MONO-OLEFIN SELECTED FROM THE GROUP CONSISTING OF BUTENE-1, BUTENE-2, 2-METHYL-BUTENE-1 AND 2-METHYLBUTENE-2, AT AN ELEVATED TEMPERATURE, IN THE VAPOR PHASE, WITH A MOLECULAR OXYEN CONTAINING GAS OVER A CATALYST CONSISTING OF THE MIXTURE OBTAINED BY DEPOSITING PHOSPHORIC ACID ON TIN OXIDE.
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE PRODUCTION OF A CONJUGATED DIOLEFINE WHICHH COMPRISES REACTING A MONO-OLEFIN SELECTED FROM THE GROUP CONSISTING OF BUTENE-1, BUTENE-2, 2-METHYL-BUTENE-1 AND 2-METHYLBUTENE-2, AT AN ELEVATED TEMPERATURE, IN THE VAPOR PHASE, WITH A MOLECULAR OXYEN CONTAINING GAS OVER A CATALYST CONSISTING OF THE MIXTURE OBTAINED BY DEPOSITING PHOSPHORIC ACID ON TIN OXIDE.
References Cited (Backward Citations)
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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) | 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 |