US2622970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for hydrocarbon synthesis
Assignee: Standard Oil Development Co
•
Filing: 1948-07-03
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Granted: 1952-12-23
•
Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:30
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0405; C07C1/041; B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00088; B01J2208/00106; B01J2208/00115; B01J2208/00132; B01J2208/0053; B01J2219/00; B01J2219/18; B01J2219/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2347682A
Cited
US2394680A
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US2367351A
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US2383636A
Cited
GB571143A
Cited
US2418837A
Cited
US2502953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |