US3235344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion catalytic reactor
Assignee: Chevron USA Inc
•
Filing: 1963-02-18
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Granted: 1966-02-15
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Dreyer Curtis
- 👤 Dwight R Loper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:14
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/32; B01J; B01J8/00; B01J8/008; B01J8/02; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; B01J8/0492; C; C10; C10G; C10G49/00; C10G49/002; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00061; B01J2208/00796; B01J2208/00884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB328586A
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |