US2705699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packed column and control system therefor
Assignee: Phillips Petroleum Co
•
Filing: 1950-07-31
•
Granted: 1955-04-05
•
Expires: 1970-07-31
Abstract
No abstract record available.
Inventors
- 👤 Dick P Bresee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:49
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/26; B01D3/16; B01D3/22; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PACKED COLUMN COMPRISING AN UPRIGHT, ELONGATED VESSEL, MEANS FOR EFFECTING THE COUNTERCURRENT FLOW OF A LIQUID AND A VAPOR IN SAID VESSEL PACKING MATERIAL DISPOSED THROUGHT A MAJOR PORTION OF THE INTERIOR OF SAID VESSEL TO PROVIDE INTIMATE CONTACTING OF SAID LIQUID AND VAPOR, SAID MATERIAL RESTRICTING THE FLOW OF SAID FLUIDS WITHIN SAID VESSEL, AND MEANS FOR RESTRICTING THE FLOW OF SAID FLUIDS AT A PREDETERMINED LOCATION IN SAID VESSEL TO A GREATER EXTENT THAN THE FLOW IS RESTRICTED BY SAID MATERIAL.
Claim 2
Dependent Claim
84 words
A PACKED COLUMN COMPRISING AN UPRIGHT, ELONGATED VESSEL, MEANS FOR EFFECTING THE COUNTERCURRENT FLOW OF A LIQUID AND A VAPOR IN SAID VESSEL PACKING MATERIAL DISPOSED THROUGHT A MAJOR PORTION OF THE INTERIOR OF SAID VESSEL TO PROVIDE INTIMATE CONTACTING OF SAID LIQUID AND VAPOR, SAID MATERIAL RESTRICTING THE FLOW OF SAID FLUIDS WITHIN SAID VESSEL, AND MEANS FOR RESTRICTING THE FLOW OF SAID FLUIDS AT A PREDETERMINED LOCATION IN SAID VESSEL TO A GREATER EXTENT THAN THE FLOW IS RESTRICTED BY SAID MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |