US3198751A
Expired / Lapsed
US
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Stannic oxide-antimony tetroxide catalyst composition
Assignee: Distillers Co Yeast Ltd
•
Filing: 1962-10-09
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Granted: 1965-08-03
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Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Bethell James Robert
- 👤 Hadley David James
- 👤 Downs Epsom
- 👤 Wood Barrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:34
CPC Classifications
B; B01; B01J; B01J21/00; B01J23/00; B01J23/14; B01J23/16; B01J23/18; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8435; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2360689A
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US1661826A
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US2250415A
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US2410044A
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US2638455A
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GB718723A
Cited
US2668142A
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US2783185A
Cited
US3094552A
Cited
US3013089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |