US2860959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure hydrogasification of natural gas liquids and petroleum distillates
Assignee: Gas Technology Institute
•
Filing: 1954-06-14
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Granted: 1958-11-18
•
Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 Elmore S Pettyjohn
- 👤 Henry R Linden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:32
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B3/384; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; C10; C10G; C10G2400/00; C10G2400/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2707147A
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US2605176A
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US2759806A
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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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |