US3479299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon based catalysts and compositions producible therefrom
Assignee: Cabot Corp
•
Filing: 1965-10-22
•
Granted: 1969-11-18
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Donald Rivin
- 👤 Jerome Aron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:59
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/20; B01J27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2408696A
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US3140192A
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US3279935A
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US3330799A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |