US3708434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium molybdate,tellurium oxide,phosphorus oxide catalyst
Assignee: Goodrich Corp
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Filing: 1970-11-02
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Granted: 1973-01-02
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Expires: 1990-11-02
Abstract
Abstract UNSATURATED ACIDS AND ALDEHYDES AS ACRYLIC ACID AND ACROLEIN OR METHACRYLIC ACID AND METHACROLEIN ARE PREPARED IN EXCELLENT YIELDS AND AT IMPROVED RATES BY THE OXIDATION OF AN OLEFIN AS PROPYLENE OR ISOBUTYLENE IN THE PRESENCE OF A CATALYST CONTAINING CHROMIUM MOLYBDATE, TELLURIUM OXIDE AND PHOSPHOROUS OXIDE.
Inventors
- 👤 J Eden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:01
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; 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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |