US3445094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamically balanced multi-path liquid-gas contacting
Assignee: Phillips Petroleum Co
•
Filing: 1964-06-08
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Granted: 1969-05-20
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Henry E Shobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:24
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2646266A
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US2698746A
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US2786082A
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US2646977A
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US2917293A
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US2988347A
Cited
US2960322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |