US3328478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of conjugated diolefines by oxidative dehydrogenation
Assignee: Distillers Co Yeast Ltd
•
Filing: 1961-04-11
•
Granted: 1967-06-27
•
Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 Barclay John Lynn
- 👤 Hadley David James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02; H03J3/12; H03J3/14; B; B01; B01J; B01J21/00; B01J23/00; B01J23/16; B01J23/18; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8435; B01J23/8437; B01J27/00; B01J27/14; B01J27/16; B01J27/18; C; C01; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/0212; C01C3/0216; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C5/00; C07C5/42; C07C5/48; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/224; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PROCESS FOR PRODUCING A CONJUGATED DIOLEFINE WHICH COMPRISES CONTACTING A VAPOR FEED MIXTURE CONSISTING ESSENTIALLY OF OXYGEN AND A MONOLEFINE CONTAINING A STRAIGHT CHAIN OF NOT LESS THAN FOUR CARBON ATOMS WITH A CATALYST COMPRISING ANTIMONY OXIDE AND TIN OXIDE AT AN ELEVATED TEMPERATURE.
Claim 2
Dependent Claim
45 words
A PROCESS FOR PRODUCING A CONJUGATED DIOLEFINE WHICH COMPRISES CONTACTING A VAPOR FEED MIXTURE CONSISTING ESSENTIALLY OF OXYGEN AND A MONOLEFINE CONTAINING A STRAIGHT CHAIN OF NOT LESS THAN FOUR CARBON ATOMS WITH A CATALYST COMPRISING ANTIMONY OXIDE AND TIN OXIDE AT AN ELEVATED TEMPERATURE.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |