US3595911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturated carboxylic acids
Assignee: Distillers Co Yeast Ltd
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Filing: 1967-02-02
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Granted: 1971-07-27
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Expires: 1987-02-02
Abstract
Abstract THE APPLICATION RELATES TO THE PRODUCTION OF ACRYLIC OR METHACRYLIC ACID BY THE VAPOUR PHASE CATALYTIC OXIDATION OF THE CORRESPONDING UNSATURATED ALDEHYDES OR OLEFINES WHEREIN THE OXIDATION CATALYST IS AN OXIDE COMPOSITION CONTAINING ANTIMONY AND MOLYBDENUM TOGETHER WITH ONE OR MORE SPECIFIED POLYVALENT METALS.
Inventors
- 👤 William John Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:22
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8875; B01J21/00; B01J23/16; B01J23/8876; B01J23/8877; B01J23/8878; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; B01J2523/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |