Patent US3513087A successfully refreshed from Google Patents.
US3513087A
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Control system for fluid cat cracker
Assignee: ConocoPhillips Co
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Filing: 1968-08-30
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Granted: 1970-05-19
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Expires: 1988-08-30
Abstract
No abstract record available.
Inventors
- 👤 John H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/187; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00061; B01J2208/00106; B01J2208/00265; B01J2208/00274; B01J2208/00292; B01J2208/003; B01J2208/00539; Y; Y10; Y10S; Y10S208/00; Y10S208/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2409751A
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US3004926A
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US3213014A
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US3261777A
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US3238121A
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US3238122A
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US3206393A
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US3316170A
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US3410793A
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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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |