Patent US2889264A successfully refreshed from Google Patents.
US2889264A
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US
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Hydrocarbon conversion process
Assignee: California Research LLC
•
Filing: 1954-12-27
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Granted: 1959-06-02
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 Spurlock Burwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:00
CPC Classifications
C; C10; C10G; C10G47/00; C10G59/00; C10G59/02; C10G65/00; C10G65/02; C10G65/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1908286A
Cited
GB424748A
Cited
US2222128A
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US2542471A
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US2573149A
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US2694671A
Cited
US2739927A
Cited
US2717230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |