US2946447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for filtering liquids, particularly for use in the beverage industry
Assignee: Filtrox Werke A G
•
Filing: 1958-10-23
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Granted: 1960-07-26
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Expires: 1978-10-23
Abstract
No abstract record available.
Inventors
- 👤 Welz Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:10
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/16; B01D29/00; B01D29/39; B01D29/41; B01D29/416; B01D29/62; B01D29/64; B01D29/6438; B01D29/6446; B01D29/70; B01D29/74
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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |