Patent US3786000A successfully refreshed from Google Patents.
US3786000A
Expired / Lapsed
US
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Catalyst for the production of acrolein and acrylic acid
Assignee: Rohm and Haas Co
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Filing: 1972-01-06
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Granted: 1974-01-15
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Expires: 1992-01-06
Abstract
Abstract A PROCESS FOR PRODUCING ACROLEIN WHICH COMPRISES CATALYTIC OXIDIZING PROPYLENE IN THE VAPOR PHASE WITH OXYGEN AND STEAM IN THE PRESENCE OF NOVEL CATALYST, HAVING SUPERIOR NATURE IN ACTIVITY, AND COMPOSED OF OXIDES OF MO, CO, FE, BI, AND SN WITH OR WITHOUT ONE OR MORE OF AL, NW, W, CR, IN, AND NB, IS DISCLOSED.
Inventors
- 👤 I Ono
- 👤 M Akashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:09
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8874; A; A23; A23J; A23J1/00; A23J1/14; B01J23/002; B01J23/8875; B01J23/8876; B01J23/8877; B01J23/8878; B01J23/888; B01J23/8885; 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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |