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Patent US2881859A successfully refreshed from Google Patents.
US2881859A
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US
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Atmospheric lint condenser
Assignee: American Air Filter Co Inc
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Filing: 1953-01-04
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Granted: 1959-04-14
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Expires: 1973-01-04
Abstract
No abstract record available.
Inventors
- 👤 Nutting Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:38
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/18; F; F24; F24F; F24F13/00; F24F13/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1510911A
Cited
US1897976A
Cited
US2016991A
Cited
US1949002A
Cited
US1982639A
Cited
US2119978A
Cited
US2127397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |