Patent US3147084A successfully refreshed from Google Patents.
US3147084A
Expired / Lapsed
US
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Tubular catalytic reactor with cooler
Assignee: Shell USA Inc
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Filing: 1962-03-08
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Granted: 1964-09-01
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Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Earl P Franzen
- 👤 Russel L Maycock
- 👤 Leigh E Nelson
- 👤 William C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/067; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/02; B01J2208/023; B01J2208/024; B01J2208/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
AN INTEGRAL TUBULAR REACTOR-COOLER WHICH COMPRISES: (A) A VERITCALLY ELONGATED VESSEL HAVING TOP AND BOTTOM END CLOSURES AND CONTAINING THREE SINGLE TUBE SHEETS SITUATED RESPECTIVELY NEAR THE TOP, NEAR THE BOTTOM, AND AT A LEVEL INTERMEDIATE THE TOP AND BOTTOM TUBE SHEETS IN VERTICALLY SPACED RELATION TO DEFINE TWO SEPARATED AND CLOSELY ADJACENT CHAMBERS SITUATED RESPECTIVELY ON OPPOSITE SIDES OF THE INTERMEDIATE TUBE SHEET, (B) A PLURALITY OF VERTICAL HEAT TRANSFER TUBES FIXED IN SEALED RELATION AT LEAST TO SAID TOP AND BOTTOM TUBE SHEETS, SAID TUBES HAVING A UNIFORM SIZE AND WALL THICKNESS AND EXTENDING CONTINUOUSLY BETWEEN SAID TWO TUBE SHEETS AND THROUGH SAID INTERMEDIATE TUBE SHEET, SAID TUBES PROVIDING CONTINUOUS FLOW PASSAGES INTERCONNECTING THE END SPACES BETWEEN SAID END CLOSURES AND THE RESPECTIVELY ADJACENT TUBE SHEETS,
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |