US3408392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alpha, beta-unsaturated carboxylic acids with a molybdenumantimony-vanadium-oxygen ternary catalyst
Assignee: Dai Cellu KK
•
Filing: 1965-08-02
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Granted: 1968-10-29
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Yamagishi Kazuo
- 👤 Sakakibara Kouzou
- 👤 Kubo Masayoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/25; B; B01; B01J; B01J21/00; B01J21/10; C07C51/252
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PROCESS FOR PREPARING A,B-UNSATURATED CARBOXYLIC ACID COMPRISING OXIDIZING AN A,B-UNSATURATED ALDEHYDE WITH GASEOUS OXYGEN IN THE PRESENCE OF A TERNARY CATALYST HAVING THE CHEMICAL COMPOSITION REPRESENTED BY THE FOLLOWING FORMULA MOAVBSBCOD
Claim 2
Dependent Claim
32 words
A PROCESS FOR PREPARING A,B-UNSATURATED CARBOXYLIC ACID COMPRISING OXIDIZING AN A,B-UNSATURATED ALDEHYDE WITH GASEOUS OXYGEN IN THE PRESENCE OF A TERNARY CATALYST HAVING THE CHEMICAL COMPOSITION REPRESENTED BY THE FOLLOWING FORMULA MOAVBSBCOD
References Cited (Backward Citations)
US3087964A
Cited
GB903034A
Cited
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 |