US2329893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic device for the purification of fluids
Assignee: Magnetos Lucifer S A
•
Filing: 1941-07-02
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Granted: 1943-09-21
•
Expires: 1961-07-02
Abstract
No abstract record available.
Inventors
- 👤 Girard Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B01; B01D; B01D35/00; B01D35/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-09-20 | 1947-03-22 | 1947-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-20 | 1951-03-22 | 1951-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-20 | 1955-03-22 | 1955-09-21 | $7700.00 | Window Closed / Lapsed |