US3605388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting luquids and gases
Assignee: Shell USA Inc
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Filing: 1968-07-19
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Granted: 1971-09-20
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Expires: 1988-07-19
Abstract
Abstract APPARATUS FOR CONTACTING LIQUIDS AND GASES COMPRISING A HOLLOW CHAMBER HAVING A VAPOR INLET AND OUTLET AND A LIQUID INLET COMMUNICATING WITH THE INTERIOR OF THE CHAMBER. ROTATIONAL MEANS IS MOUNTED IN THE CHAMBER DOWNSTREAM OF THE VAPOR INLET FOR IMPARTING ROTARY MOVEMENT TO A MIXTURE OF LIQUID AND VAPOR WITHIN THE APPARATUS. CONSTRICTION MEANS IS DISPOSED DOWNSTREAM OF THE ROTATIONAL MEANS AND UPSTREAM OF THE VAPOR INLET FOR CONSTRICTING THE FLOW THROUGH SAID CHAMBER.
Inventors
- 👤 Frederik J Zuiderweg
- 👤 Hendrik J Scheffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/30; B01D3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |