Patent US2986532A successfully refreshed from Google Patents.
US2986532A
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Cracking catalyst
Assignee: Azote et Produits Chimiques SA
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Filing: 1956-05-28
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Granted: 1961-05-30
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Gosselin Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:59
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J21/00; B01J21/14; C; C07; C07C; C07C4/00; C07C4/02; C07C4/06; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231231A
Cited
US2353509A
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US2611738A
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US2586694A
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US2629753A
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US2712985A
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US2791548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |