Patent US3380591A successfully refreshed from Google Patents.
US3380591A
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US
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Fluid filter with automatic cleaning device
Assignee: Rellumit Inter Sarl
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Filing: 1966-05-31
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Granted: 1968-04-30
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Muller Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:58
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/09; B; B01; B01D; B01D29/00; B01D29/11; B01D29/114; B01D29/44; B01D29/46; B01D29/50; B01D29/52; B01D29/62; B01D29/66; B01D29/668; B01D29/76; B01D29/80; B01D29/84; B01D29/846; B01D36/00; B01D36/001; B01D36/003; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2767851A
Cited
US3283903A
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US3176846A
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US3169109A
Cited
US3228528A
Cited
US3280980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |