US2872295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-fluid contactor
Assignee: Universal Oil Products Co
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Filing: 1956-03-12
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Granted: 1959-02-03
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Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jack B Pohlenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:35
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/22; B01D11/00; B01D11/04; B01D11/0426; B01D11/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
FIG-01 A SIEVE DECK ASSEMBLY COMPRISING A PAIR OF VERTICALLY SPACED, HORIZONTAL PERFORATED PLATES, ONE OF SAID PLATES HAVING A GREATER PERFORATED AREA THAN THE OTHER, FIRST CONDUIT MEANS EXTENDING VERTICALLY FROM THE PLATE HAVING THE GREATER PERFORATED AREA THROUGH AND BEYOND THE PLATE HAVING THE SMALLER PERFORATED AREA, THAN THE OTHER, CONDUIT MEANS EXTENDING VERTICALLY FROM THE SPACE BETWEEN SAID PLATES THROUGH AND BEYOND THE PLATE HAVING THE SMALLER PERFORATE AREA, SAID SECOND CONDUIT MEANS EXTENDING A LESSER VERTICAL DISTANCE FROM THE PLATE OF SMALLER PERFORATED AREA THAN SAID FIRST CONDUIT MEANS.
Claim 2
Dependent Claim
93 words
FIG-01 A SIEVE DECK ASSEMBLY COMPRISING A PAIR OF VERTICALLY SPACED, HORIZONTAL PERFORATED PLATES, ONE OF SAID PLATES HAVING A GREATER PERFORATED AREA THAN THE OTHER, FIRST CONDUIT MEANS EXTENDING VERTICALLY FROM THE PLATE HAVING THE GREATER PERFORATED AREA THROUGH AND BEYOND THE PLATE HAVING THE SMALLER PERFORATED AREA, THAN THE OTHER, CONDUIT MEANS EXTENDING VERTICALLY FROM THE SPACE BETWEEN SAID PLATES THROUGH AND BEYOND THE PLATE HAVING THE SMALLER PERFORATE AREA, SAID SECOND CONDUIT MEANS EXTENDING A LESSER VERTICAL DISTANCE FROM THE PLATE OF SMALLER PERFORATED AREA THAN SAID FIRST CONDUIT MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |