Patent US3225985A successfully refreshed from Google Patents.
US2909286A
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Separator for filtering out solids
Assignee: Saab Bofors AB
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Filing: 1956-05-11
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Granted: 1959-10-20
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Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 Norell Karl Torvald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:16
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/02; D21C9/06; B; B01; B01D; B01D29/00; B01D29/01; B01D29/075; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/66; B01D29/68; B01D29/682; B01D29/76; B01D29/78; B01D29/86; B01D29/88; B01D29/90; B01D29/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |