Patent US3587669A successfully refreshed from Google Patents.
US3587669A
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US
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Process for providing reactors with catalysts and vibrator for use in carrying out the process
Assignee: Topsoe AS
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Filing: 1967-02-02
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Granted: 1971-06-28
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Expires: 1987-02-02
Abstract
Abstract METHOD AND APPARATUS FOR PACKING CATALYST BEDS UTILIZING SYMMETRICALLY SPACED VIBRATION GENERATORS MOUNTED ON AN ANNULAR VIBRATION-TRANSMITTING ELEMENT WHICH IS RAISED AS THE CATALYST LEVEL RISES.
Inventors
- 👤 Bent Bors Vabo
- 👤 Per Heymann Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:45
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0035; B01J8/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |