Patent US3434701A successfully refreshed from Google Patents.
US3434701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor-liquid contacting apparatus
Assignee: Phillips Petroleum Co
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Filing: 1966-08-15
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Granted: 1969-03-25
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Robert D Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:15
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
IN FIGURE 4 THERE ARE A PLURALITY OF TRAYS (SPECIFICALLY TWO TRAYS 38 AND 38'') AT EACH LEVEL. THE FLOW MAY GO FROM THE OUTER TO THE INNER PART OF THE COLMN ON ONE LEVEL AND FROM THE INNER TO THE OUTER PART ON THE NEXT LEVEL. IN FIGURE 5 THERE ARE AT LEAST THREE BAFFLES 52, 53 AND 54.
References Cited (Backward Citations)
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US2713478A
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FR1094049A
Cited
GB823610A
Cited
US2973189A
Cited
US2926754A
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US3022054A
Cited
US3162700A
Cited
US3338566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |