US3408400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated aldehydes
Assignee: Distillers Co Yeast Ltd
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Filing: 1965-03-15
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Granted: 1968-10-29
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Expires: 1985-03-15
Abstract
No abstract record available.
Inventors
- 👤 Bohemen John
- 👤 Newman Frank Christopher
- 👤 Wood Barrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:38
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/002; B01J23/14; B01J23/16; B01J23/18; B01J23/20; B01J23/22; B01J23/24; B01J23/26; B01J23/32; B01J23/34; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8435; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; B01J2523/00; B01J37/00; B01J37/0009; B01J37/0027; B01J37/0036; B01J37/0063; B01J37/02; B01J37/03; B01J37/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS FOR THE PRODUCTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WHICH COMPRISES REACTING AT AN ELEVATED TEMPERATURE IN THE VAPOR PHASE AN OLEFINE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTENE WITH MOLECULAR OXYGEN OVER AN OXIDE COMPOSITION CONTAINING ANTIMONY, TIN AND A POLYVALENT METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MANGANESE, TITANIUM, AND VANADIUM.
Claim 2
Dependent Claim
64 words
A PROCESS FOR THE PRODUCTION OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WHICH COMPRISES REACTING AT AN ELEVATED TEMPERATURE IN THE VAPOR PHASE AN OLEFINE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTENE WITH MOLECULAR OXYGEN OVER AN OXIDE COMPOSITION CONTAINING ANTIMONY, TIN AND A POLYVALENT METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MANGANESE, TITANIUM, AND VANADIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |