US3595626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic fillers and covers for packed beds
Assignee: EIDP Inc
•
Filing: 1968-11-14
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Granted: 1971-07-27
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Expires: 1988-11-14
Abstract
Abstract CERAMIC HONEYCOMB PLACED WITHIN OR ON TOP OF A PACKED BED, AND PARTICULARLY A CATALYTIC BED, IMPROVES THE EFFECTIVENESS OF THE BED. D R A W I N G
Inventors
- 👤 Donald M Sowards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:52
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0292; B01J8/18; B01J8/24; B01J8/34; Y; Y10; Y10S; Y10S261/00; Y10S261/72
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |