Patent US2885028A successfully refreshed from Google Patents.
US2885028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical dry tubular-stocking dust collector of the traversing reversejet blow ring or self cleaning type
Assignee: American Air Filter Co Inc
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Filing: 1956-05-07
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Granted: 1959-05-05
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Expires: 1976-05-07
Abstract
No abstract record available.
Inventors
- 👤 Sylvan Stig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:51
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0002; B01D46/0005; B01D46/02; B01D46/04; B01D46/66; B01D46/70; B01D46/72; Y; Y10; Y10S; Y10S55/00; Y10S55/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1461809A
Cited
US1776805A
Cited
GB485039A
Cited
GB488129A
Cited
US2308309A
Cited
GB597378A
Cited
US2620893A
Cited
US2576310A
Cited
US2769506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |