Patent US2919765A successfully refreshed from Google Patents.
US2919765A
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US
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Filter element assembly
Assignee: Bendix Aviation Corp
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Filing: 1956-12-06
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Granted: 1960-01-05
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Expires: 1976-12-06
Abstract
No abstract record available.
Inventors
- 👤 Kasten Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:11
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2411; B01D46/2414; B01D29/00; B01D29/11; B01D29/111; B01D29/13; B01D29/23; B01D29/232; B01D46/52; B01D46/521; F; F02; F02M; F02M35/00; F02M35/02; F02M35/024; B01D2265/00; B01D2265/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB326047A
Cited
US2016993A
Cited
US2670055A
Cited
GB680211A
Cited
US2776453A
Cited
US2724868A
Cited
US2732031A
Cited
US2771156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |