US2753249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic polymerization apparatus
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1950-10-06
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Granted: 1956-07-03
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Expires: 1970-10-06
Abstract
No abstract record available.
Inventors
- 👤 John E Idenden
- 👤 Lyman J Parrigin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; B; B01; B01J; B01J8/00; B01J8/02; B01J2208/00; B01J2208/00008; B01J2208/00539; B01J2208/00548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN APPARATUS COMPRISING AN ELONGATED TUBULAR REACTOR, AN ELONGATED TUBULAR BYPASS MEMBER CONCENTRICALLY DISPOSED WITHIN SAID REACTOR AND SPACED RADIALLY THEREFROM TO FORM AN ANNULAR REACTION ZONE THEREBETWEEN, MEANS FOR INTRODUCING A FLUID WITHIN ONE END OF SAID REACTION ZONE, MEANS FOR WITHDRAWING THE FLUID FROM THE OPPOSITE END OF SAID REACTION ZONE, A PLURALITY OF FLOW RESTRICTION MEANS SPACED ALONG THE LENGTH OF THE INTERIOR OF THE BYPASS MEMBER TO PREFERENTIALLY DIRECT FLOW OF THE FLUID THROUGH THE LENGTH OF THE REACTION ZONE, AND A PLURALITY OF FLUID INTERCOMMUNICATION MEANS POSITIONED AT A PLURALITY OF POINTS SPACED LONGITUDINALLY ALONG SAID REACTION ZONE AND SAID BYPASS MEMBER TO ENABLE THE FLOWING FLUID TO BYPASS PORTIONS OF SAID REACTION ZONE WHICH BECOME PLUGGED.
Claim 2
Independent Claim
122 words
AN APPARATUS COMPRISING AN ELONGATED TUBULAR REACTOR, AN ELONGATED TUBULAR BYPASS MEMBER CONCENTRICALLY DISPOSED WITHIN SAID REACTOR AND SPACED RADIALLY THEREFROM TO FORM AN ANNULAR REACTION ZONE THEREBETWEEN, MEANS FOR INTRODUCING A FLUID WITHIN ONE END OF SAID REACTION ZONE, MEANS FOR WITHDRAWING THE FLUID FROM THE OPPOSITE END OF SAID REACTION ZONE, A PLURALITY OF FLOW RESTRICTION MEANS SPACED ALONG THE LENGTH OF THE INTERIOR OF THE BYPASS MEMBER TO PREFERENTIALLY DIRECT FLOW OF THE FLUID THROUGH THE LENGTH OF THE REACTION ZONE, AND A PLURALITY OF FLUID INTERCOMMUNICATION MEANS POSITIONED AT A PLURALITY OF POINTS SPACED LONGITUDINALLY ALONG SAID REACTION ZONE AND SAID BYPASS MEMBER TO ENABLE THE FLOWING FLUID TO BYPASS PORTIONS OF SAID REACTION ZONE WHICH BECOME PLUGGED.
References Cited (Backward Citations)
GB273045A
Cited
US2257178A
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US2252719A
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US2338345A
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US2369478A
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US2315208A
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US2354640A
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US2521538A
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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) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |