Patent US3390075A successfully refreshed from Google Patents.
US3390075A
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Process for recovering hydrocarbon gases from streams thereof containing h2s
Assignee: Phillips Petroleum Co
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Filing: 1966-05-02
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Granted: 1968-06-25
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:25
CPC Classifications
C; C10; C10G; C10G11/00; C07; C07C; C07C7/00; C07C7/11; C10G11/10; C10K; C10K1/00; C10K1/08; C10K1/085; C10K1/10; C10K1/12; C10K1/14; C10K1/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126331A
Cited
US2238201A
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US2544564A
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US3154482A
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US3161461A
Cited
US3205164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |