US3322693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt molybdate catalyst for the production of acrylic or methacrylic acid
Assignee: Distillers Co Yeast Ltd
•
Filing: 1965-02-18
•
Granted: 1967-05-30
•
Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Bethell James Robert
- 👤 Hadley David James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:27
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; B01J37/00; B01J37/0009; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2369432A
Cited
US2325033A
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US2393288A
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US2650906A
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US2677649A
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US2625519A
Cited
GB791725A
Cited
US3058802A
Cited
US3098102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |