Patent US2526657A successfully refreshed from Google Patents.
US2526657A
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Method of contacting vapors with a solid catalytic material
Assignee: Phillips Petroleum Co
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Filing: 1945-07-13
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Granted: 1950-10-24
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Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jesse A Guyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:41
CPC Classifications
B; B01; B01J; B01J15/00; B01J15/005; B01J23/00; B01J19/00; B01J19/24; B01J19/248; B01J19/249; B01J19/2495; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30276; B01J2219/30288; B01J2219/30292; B01J2219/304; B01J2219/30475
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A CATALYST UNIT FOR USE IN A TUBULAR CATALYST CHAMBER, COMPRISING A METALLIC TUBE CONTAINING AT LEAST ONE CATALYST ELEMENT, SAID CATALYST ELEMENT BEING CONSTRUCTED OF A CONTINUOUS METALLIC SHEET OF UNDULATE PLAITED FORM IN WHICH THE FOLDS ARE RELATIVELY COMPACT BUT WITH SUBSTANTIAL FREE SPACE THEREBETWEEN AND IN WHICH SUCCESSIVE FOLDS OUTWARDLY IN EITHER DIRECTION FROM A CENTER FOLD ARE PROGRESSIVELY NARROWER SUCH THAT THE EXTERNAL SHAPE OF THE ELEMENT CONFORMS ROUGHLY TO THE INTERIOR OF SAID TUBE, A PLURALITY OF CROSSBARS WHICH ARE FASTENED AT EACH END OF SAID ELEMENT
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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |