Patent US3249405A successfully refreshed from Google Patents.
US3249405A
Expired / Lapsed
US
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Catalytic reforming apparatus
Assignee: Phillips Petroleum Co
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Filing: 1962-01-31
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Granted: 1966-05-03
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Expires: 1982-01-31
Abstract
No abstract record available.
Inventors
- 👤 Paul M Waddill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:39
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0492; B01J8/0446; B01J8/0461; B01J8/0465; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00831; B01J2208/00849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
REFORMIG APPARATUS COMPRISING A VERTICALLY DISPOSED VESSEL, VAPOR INLET MEANS IN AN UPPER PORTION OF SAID VESSEL, VAPOR OUTLET MEANS COMPRISING A SUBSTANTIALLY VERTICAL VAPOR-PERVIOUS CONDUIT ENTERING SAID VESSEL THROUGH A LOWER PORTION THEREOF, INNER AND OUTER VAPORPERVIOUS SUBSTANTIALLY CONCENTRIC SEPARATORS DISPOSED VERTICALLY BETWEEN SAID VESSEL AND SAID VAPOR OUTLET MEANS SO AS TO DEFINE RESPECTIVELY AN INNER, MIDDLE, AND OUTER ANNULUS, A MASS OF SOLID PARTICULATE REFORMING CATALYST IN SAID INNER ANNULUS, A MASS OF SOLID PARTICULATE SILICA-ALUMINA IN SAID MIDDLE ANNULUS AND A PAIR OF VAPOR IMPERVIOUS COVER PLATES OVER SAID MIDDLE AND SAID INNER MASSES, AND RESTING ON SAID MASSES.
Claim 2
Dependent Claim
103 words
REFORMIG APPARATUS COMPRISING A VERTICALLY DISPOSED VESSEL, VAPOR INLET MEANS IN AN UPPER PORTION OF SAID VESSEL, VAPOR OUTLET MEANS COMPRISING A SUBSTANTIALLY VERTICAL VAPOR-PERVIOUS CONDUIT ENTERING SAID VESSEL THROUGH A LOWER PORTION THEREOF, INNER AND OUTER VAPORPERVIOUS SUBSTANTIALLY CONCENTRIC SEPARATORS DISPOSED VERTICALLY BETWEEN SAID VESSEL AND SAID VAPOR OUTLET MEANS SO AS TO DEFINE RESPECTIVELY AN INNER, MIDDLE, AND OUTER ANNULUS, A MASS OF SOLID PARTICULATE REFORMING CATALYST IN SAID INNER ANNULUS, A MASS OF SOLID PARTICULATE SILICA-ALUMINA IN SAID MIDDLE ANNULUS AND A PAIR OF VAPOR IMPERVIOUS COVER PLATES OVER SAID MIDDLE AND SAID INNER MASSES, AND RESTING ON SAID MASSES.
References Cited (Backward Citations)
US2363738A
Cited
US2939833A
Cited
US2779714A
Cited
US2704741A
Cited
US2897131A
Cited
US2893852A
Cited
US2905633A
Cited
US2969318A
Cited
US3051561A
Cited
US2899378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |