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US2668792A
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Suppressing gas production in the vapor phase conversion of hydrocarbons
Assignee: Gyro Process Co
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Filing: 1948-11-01
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Granted: 1954-02-09
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Expires: 1968-11-01
Abstract
No abstract record available.
Inventors
- 👤 William W Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:08
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/34; C10G9/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1715643A
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US1613010A
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US1981150A
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US1984569A
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US2049018A
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US2017874A
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US2193772A
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US2470680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |