US3481475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the continuous separation of solids from a liquid flowing in a conduit
Assignee: Siemens AG
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Filing: 1968-01-02
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Granted: 1969-12-02
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Expires: 1988-01-02
Abstract
No abstract record available.
Inventors
- 👤 Klaus Ruthrof
- 👤 Gerhard Schwarzer
- 👤 Jose Domenech Agell
- 👤 Enrique Veiga Mir
- 👤 Jesus Colell Artigas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:47
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/706; G11B5/70626; G11B5/70642; B; B01; B01D; B01D35/00; B01D35/02; B01D35/22; F; F16; F16L; F16L55/00; F16L55/24; B01D2201/00; B01D2201/02
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |