US3280182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of acrolein or methacrolein over antimony molybdate, cobalt molybdate or tin molybdate in the presence of arsenic or arsenic oxide
Assignee: Distillers Co Yeast Ltd
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Filing: 1963-03-18
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Granted: 1966-10-18
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Gasson Edward James
- 👤 Jenkins Rowland Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:19
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J23/887; B01J23/8876; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; B01J2523/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR THE PRODUCTION OF UNSATURATED ALIPHATIC CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID WHICH COMPRISES REACTING AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 250* TO ABOUT 600*C. IN THE VAPOUR PHASE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WITH MOLECULAR OXYGEN IN THE PRESENCE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND AN ARSENIC OXIDE OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF ANTIMONY MOLYBDATE, COBALT MOLYBDATE AND THIN MOLYBDATE.
Claim 2
Dependent Claim
89 words
A PROCESS FOR THE PRODUCTION OF UNSATURATED ALIPHATIC CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID AND METHACRYLIC ACID WHICH COMPRISES REACTING AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 250* TO ABOUT 600*C. IN THE VAPOUR PHASE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WITH MOLECULAR OXYGEN IN THE PRESENCE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ARSENIC AND AN ARSENIC OXIDE OVER AN OXIDATION CATALYST SELECTED FROM THE GROUP CONSISTING OF ANTIMONY MOLYBDATE, COBALT MOLYBDATE AND THIN MOLYBDATE.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |